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Negations with prefixes

11/25
Recursos

¿Cómo se utilizan los prefijos para negar en inglés?

El uso de prefijos negativos en inglés es una herramienta valiosa para modificar el significado de la palabras y convertir afirmaciones en negaciones. Estos prefijos son esenciales para enriquecer tu vocabulario y mejorar tu comprensión del idioma. Al entender cómo funcionan, puedes transformar fácilmente un adjetivo o un verbo afirmativo en su forma negativa con tan solo algunas letras. Vamos a explorar cómo funcionan estos prefijos y su aplicación en diferentes contextos.

¿Cuáles son los prefijos negativos más comunes?

Existen varios prefijos que se utilizan comúnmente en inglés para expresar negación. Aquí te presentamos algunos de los más importantes:

  • "a-": Este prefijo se utiliza para indicar la oposición o ausencia de una característica. Por ejemplo:

    • Political (político) se convierte en apolitical (apolítico).
    • Symmetric (simétrico) cambia a asymmetric (asimétrico).
  • "dis-": Se usa para expresar la falta o ausencia de algo. Algunos ejemplos:

    • Comfort (comodidad) se transforma en discomfort (incomodidad).
    • Agree (acuerdo) pasa a ser disagree (desacuerdo).
  • "il-", "im-", "in-", "ir-": Aunque son diferentes, estos prefijos funcionan de manera similar al cambiar el significado a negativo dependiendo de la palabra que acompaña:

    • Legal (legal) se convierte en illegal (ilegal).
    • Perfect (perfecto) se convierte en imperfect (imperfecto).
    • Organic (orgánico) en inorganic (inorgánico).
    • Regular (regular) en irregular (irregular).
  • "mis-": Indica incorrectitud o error en acción o idea:

    • Understand (entender) se cambia a misunderstand (malentender).
    • Spell (deletrear) se convierte en misspell (deletrear mal).
  • "non-": Es menos común pero muy útil para negar algo completamente. Algunos ejemplos:

    • Essential (esencial) se convierte en nonessential (no esencial).
    • Sense (sentido) se transforma en nonsense (sin sentido).
  • "un-": Ayuda a negar características o acciones:

    • Predictable (predecible) se convierte en unpredictable (impredecible).
    • Certain (cierto) cambia a uncertain (incierto).

¿Cómo se identifican las negaciones incorrectas?

Al aprender y aplicar estos prefijos, es importante reconocer cuándo una forma negativa está mal construida. Practicar con ejemplos y realizar ejercicios es crucial. Aquí hay un ejercicio para ti:

  1. Frase correcta: “I need to unpack tonight” (Necesito desempacar esta noche).
  2. Frase incorrecta: “Are you disane? I won’t do that” es incorrecta porque debería ser “Are you insane?” (¿Estás loco?).
  3. Frase incorrecta: “That’s very unprobable” porque la palabra correcta sería “improbable.”
  4. Frase incorrecta: “This is totally inmoral” debería ser “immoral” (con doble 'M').
  5. Frase correcta: “You can disregard my email” (Puedes ignorar mi correo electrónico).

Cuando practiques, asegúrate de verificar tus respuestas consultando recursos confiables o, de ser posible, trabajando con un profesor que pueda guiarte.

¿Cómo practicar y mejorar en el uso de prefijos negativos?

La mejor manera de mejorar en este tema es dedicando tiempo a la práctica. Aquí te comparto algunas ideas:

  • Crea tus propias listas de palabras con prefijos negativos y compáralas con sus contrapartes positivas.
  • Realiza ejercicios de memoria usando frases simples y complicadas.
  • Usa juegos de palabras y aplicaciones diseñadas para expandir tu vocabulario en inglés.
  • Participa en foros o grupos online donde puedas compartir tus avances y aprender de otros estudiantes.

Recuerda, la práctica hace al maestro. Compartir tus experiencias y nuevos aprendizajes en redes sociales o con amigos también puede reforzar tu conocimiento. ¡No olvides dar el siguiente paso en tu camino hacia la fluidez en inglés!

Aportes 140

Preguntas 6

Ordenar por:

¿Quieres ver más aportes, preguntas y respuestas de la comunidad?

  • Organized = Disoranized
  • Correct = Incorrect
  • Reliable = Unreliable
  • Sexual = Asexual
  • Believer = Non-believer
  • Possible = Impossible
  • Conceived = Ill-conceived
    *Refutable = Irrefutable
  • Adventure = Misadventure

Examples using prefixs:

  • Avoid tax is illegal.
  • Your web site is imperfect.
  • This button has nonsense.
  • Tommorrow is uncertain.
  • The weather is unpredictable.
  • Your picture is asymmetric.
  • This element is nonessential for the web site.
  • I missundertand the homework.
  • There’s no need to be Political
    • Your speech was very apolitical.
  • This corner seems very symmetrical, I love it!
    • This box looks asymmetrical, are you sure they built it right?
  • I love the comfort vibes that this place gives me.
    • I feel a little discomfort about this situation.
  • I agree with your plans.
    • I disagree with you, this is just insane.
  • We need to talk about some legal aspects of your business.
    • I don’t know dude, this seems a bit illegal
  • This picture is just perfect.
    • Everybody is imperfect, that’s the beauty of being a human.
  • I love organic food, is healthy and tastes good.
    • This bottle is inorganic, don’t you dare throw it away, you have to put it in a trash can.

A prefix is a few letters at the beginning of a word. It can change the meaning of the word. Negative prefixes make the meaning of the word negative or have the contrary meaning

1. **Possible** - Impossible 2. **Political** - Apolitical 3. **Moral** - Amoral 4. **Typical** - Atypical 5. **Symmetrical** - Asymmetrical 6. **Patient** - Impatient 7. **Perfect** - Imperfect 8. **Mature** - Immature 9. **Logical** - Illogical 10. **Legible** - Illegible 11. **Honest** - Dishonest 12. **Functional** - Dysfunctional 13. **Advantage** - Disadvantage 14. **Comfort** - Discomfort 15. **Respect** - Disrespect 16. **Trust** - Distrust 17. **Visible** - Invisible 18. **Audible** - Inaudible 19. **Stable** - Unstable 20. **Happy** - Unhappy

Fiction -> Nonfiction

  • I’m very discomfort with this room
  • That is an irregular way to make the laws
  • That rele it’s nonessential in the system
### ✅ 1. **Unhappy** (prefijo **un-**) 👉 *She felt **unhappy** after the bad news.* ✅ 2. **Impossible** (prefijo **im-**) 👉 *It's **impossible** to finish this in one day.* (✅ 3. **Dislike** (prefijo **dis-**) 👉 *I **dislike** waking up early.* ### ✅ 5. **Irregular** (prefijo **ir-**) 👉 *English has many **irregular** verbs.* ✅ 6. **Inactive** (prefijo **in-**) 👉 *The account is **inactive** right now.*
La forma correcta de decir "no understood" es "misunderstood". Este término utiliza el prefijo "mis-", que indica un malentendido o un error en la comprensión de algo. Por ejemplo, puedes decir: "I misunderstood the instructions" (Malinterpreté las instrucciones). Es importante practicar el uso de prefijos como este para construir un vocabulario más preciso y claro en inglés.
* Unpack - correct * Disane - incorrect (insane is correct) * Unprobable - incorrect (improbable is correct) * Inmoral - incorrect (immoral is correct) * Disregard - correct
o This person is political. o This person is apolitical. o This house is symmetrical. o This house is asymmetrical. o This room is very comfortable. o This room is very uncomfortable. o I agree with this job offer. o I disagree with this job offer. o Smoking Marijuana is legal. o Smoking Marijuana is illegal. o This work is perfect. o This work is imperfect. o This crop is organic. o This crop is inorganic. o The growth is regular. o The growth is irregular. o I understand English. o I misunderstand English. o I spell in English. o I misspell in English. o This idea is very essential. o This idea is very nonessential. o This makes sense. o This is nonsense. o The market is very predictable. o The market is very unpredictable. o This is very certain. o This is very uncertain.
![](https://static.platzi.com/media/user_upload/image-d9fddfaa-7f2a-47a1-9546-59d153f996dd.jpg)
I have a question. did he could use "unlikely" instead "improbable"?
Class summarize: In this class we saw specific prefixes for negate in order not to use “don’t” or other auxiliary verbs all the time.

ANSWER CORRECT OF EXERCISE.
1 I need to unpack tonight.
5 You can disregard my email.

MY PRACTICE

  • I hate politics that’s why I consider myself apolitical.

Time to practice!
.
Correct or incorrect?
.

  • I need to unpack tonight. (CORRECT).
  • Are you disane? I won’t do that. (INCORRECT). Are you insane? I won’t do that.
  • That’s very unprobable. (INCORRECT.) That’s very improbable.
  • This is totally inmoral. (INCORRECT). This is totally immoral.
  • You can disregard my email. (CORRECT).

* I disconfort living in this place. * My dad disagree that I wants to be an actor. * Evade taxes is illegal. * I misspell the English essay. * You only talk nonsense when you´re drunk.

It’s important to be honest and avoid dishonest behavior.

Some examples: **Un**kind **Im**possible **A**typical **I**rregular
a sexual disappointed inperfect inusual irrTIONAL
1. Correct 2. Incorrect 3. Incorrect 4. Incorrect 5. Correct

Time of practice.
Correct or incorrect?

  1. I need to unpack tonight. CORRECT
  2. Are you disane? I won’t do that. INCORRECT. Are you insane? I won’t do that.
  3. That’s very unprobable. INCORRECT. That’s very improbable.
  4. This is totally inmoral. INCORRECT. This is totally immoral.
  5. You can disregard my email. CORRECT

Practice:

  • “Burn” is an irregular verb.
  • That candidate looks like a nonsense person.
  • That monograph is misspelled.

1 - My friends and I are always having++ political ++discussions late into the night.
The organization insists that it is apolitical and does not identify with any one particular party.

2- The house looks inviting with its symmetrical architecture.
Asymmetrical brain activity discriminates between positive and negative affective stimuli in human infants

3- She evidently dresses for comfort
You may feel a little discomfort for a few days after the operation.

4-I agree with you on this issue
I’m afraid I have to disagree with you

5- You have a legal obligation to ensure your child receives a proper education
Prostitution is illegal in some countries.

6- This church is a perfect example of medieval architecture.
We’re living in an imperfect world

7- Cheap organic food is still difficult to come by
Rocks and metals are inorganic.

8- She goes to her doctor for regular check-ups
Releasing the goods without an invoice is most irregular.

9- Is there anyone here who understands Arabic?
you completely misunderstand the nature of the problem.

10- How do you spell receive?
Edgar Allan Poe’s middle name is often misspelled as Allen

11- Government support will be essential if the project is to succeed.
Candy and movies are nonessential expenses

12- With her excellent sense of smell, she could tell if you were a smoker from the other side of the room
This report is nonsense and nothing but a waste of paper

13- The ending to the film was just so predictable.
The weather there can be unpredictable

14- Are you absolutely certain (that) you gave them the right number?
She’s uncertain whether to go to New Zealand or not.

Activity 📚 ✏️

Make some examples using negation with prefixes

💥 I’m a apolitical person

💥 The last line is asymmetric

💥 She feels discomfort with her boss

💥 I totally disagree with you

💥 It’s illegal to sell drugs

💥 We are all imperfect humans and make mistakes

💥 Which container is for inorganic garbage?

💥 She was taken to hospital suffering from an irregular heartbeat

💥 You misunderstood the situation yesterday

💥 There was an error because she misspelled his last name

💥 Please, avoid all nonessential uses of water

💥 She just started talking nonsense

💥 Army movements are unpredictable

💥 We are still uncertain of the truth

This is totally illegal.
It is uncertain that the Pope come to Peru next year.
This system has nonsense.
My sister has an asymmetric haircut.

Anna looks some unhappy today.
I think it not will rain today, is very improbable.
Vito is disagreed with Chiara opinion.
You mustn´t do that! It´s ilegal.
Going to a party to forget my problems, it´s makes nonsense for me.
I separated the trash in organics and inorganics.

“Negations with prefixes”

  • Time to practice! Correct or Incorrect?
  1. I need to unpack tonight. Correct
    R// Unpack ↔ Unpack
  2. Are you disane? I won’t do that. Incorrect.
    R// Disane ↔ Insane
  3. That’s very unprobable. Incorrect.
    R// Unprobable ↔ Improbable
  4. This is totally inmoral. ** Incorrect.**
    R// Inmoral ↔ Immoral
  5. You can disregard my email. Correct
    R// Disregard ↔ Disregard
  • well, I’m not well acknowledge with this topic, so I hope you might be comprehensive if I misspell a related word.

  • Might it rain tomorow?

  • Who knows, It’s Unpredictable

  • Is it?

Well, even this word, “correct” and “incorrect” we are doing a negation with prefixes 😂

  1. Correct.
  2. Incorrect.
  3. Incorrect.
  4. Incorrect.
  5. Correct.
  1. unpack -> Correct
  2. disane -> Incorrect
  3. unprobable -> Incorrect
  4. inmoral -> Incorrect
  5. disregard -> Correct

By adding a prefixe.
I know that this isn’t the topic, but the last one is a example of one using of by to express the way of doing something.

Practice:

  • That is very aesthetic
  • He is very disrespect
  • They are very irrational
  • That was my mistake
  • That issue is noncritical
  • She is unhappy
  • This sign is nonsense for me
  • Everyone is imperfect
  • I misunderstand it you told me
  • All of us in a moment of our lives did something ilegal.
  • i missunderstand my boss, sometimes he`s unpredictable. For me is uncertain if i am doing well things.
  • Iam disagree with a lot of things that happen in the company.

Common prefixes to Negate ❌

  1. A-
  2. Dis-
  3. Im-
  4. il-
  5. In-
  6. Mis-
  7. Ir-
  8. Non-
  9. Un-

Use of Negations with prefixes 🔥

  • I can make negations without common phrases like: Don’t - Doesn’t.
  • They works like words with meaning.

Examples

A prefix is a few letters at the beginning of a word. It can change the meaning of the word. Negative prefixes make the meaning of the word negative or have the contrary meaning.

  1. It’s unusual for the trees to flower so early.
  2. The time on my clock is incorrect.
  3. People with invalid are deported to another country.
  4. Inexpensive socks fade faster than pricey ones.
  5. Rocks and minerals are inrganic.
  • I’m disagree with the environmental pollution by mega factories.

  • She take a photography applying the Asymmetric technique.

  • The traffic of animals is illegal everywhere.

  • Sometimes I write misspell in English, but I will do better.

  • I feel uncomfortable when someone throws garbage on the street.

My examples:

  1. This drawing is asymmetric.
  2. She really misunderstood my words.
  3. That tornado affected indirectly all the neighbour country.
  4. My car’s whereabouts is uncertain.
  5. Stop saying nonsense.
  6. All of us are imperfect.

I need to unpack tonight.
Correct.
2 . Are you disane? I won´t do that.
Incorrect.
That´s very unprobable.
Incorrect.
This is totally inmoral.
Incorrect.
You can disregard my email.
Correct.
Are you INSANE? I won´t do that.
That´s very IMPROBABLE.
This is totally IMMORAL.

I need to unpack tonight
Are you insane? I won’t do that
That’s very improbable.
This is totally inmoral.
You can disregard my email.

Sometimes is good for the people be disagree
Is easier get inorganic food than organic.
The edge is something nonssential for learn
I hate the fact that my English is imperfect

Practice:

  1. If you leave it on this, it looks symmetric; but if you take it off, it looks asymmetric. Up to you.
  2. I agree with you and I disagree with her.
  3. I’ll enter there completely legally. I don’t like illegal things.
  4. I trust this, but I mistrust that.
  5. That abstract painting is beautiful. Do you prefer that one or the non-abstract over there?
  6. What happened with your usual greeting? This one looks so unusual on you.
  • I’m an apolitical human being.
  • I want that asymmetric table.
  • I noted some discomfort at the dinner.
  • I totally disagree with you about the budget.
  • These pills are illegal.
  • I’m an imperfect human being.
  • I don’t want those inorganic vegetables.
  • The pace of that team has been irregular.
  • I didn’t want to offend you, it was just a misunderstanding.
  • I’m totally mad with the professor, he misspells my last name!
  • The shoes that you packed are nonessential.
  • The president wants to raise the taxes, that’s total nonsense!
  • My dog has unpredictable behavior.
  • The income for this month is uncertain.

Negation with prefixes

I’m political 
I’m an apolitical.
--------------------
There were two mirrors symmetrical
There were two mirrors asymmetrical.
--------------------------------------
I agree with both Jack and Suzzy.
I disagree with both Jack and Suzzy.
---------------------------------------
There is a comfort chair.
There is a discomfort chair. 
-------------------------------
Cannabis is legal in some countries.
Cannabis is illegal in some countries.
-------------------------------------------------
The place is perfect to arrange a wedding.
The  place is imperfect to arrange a wedding.
-----------------------------------------------
All of the fruits contain organic properties.
All of the plastic bags contain inorganic properties.
---------------------------------------------------------
Your outcome in this semester is regular.
Your outcome in this semester is irregular.
---------------------------------------------------
I understand the instructions.
I misunderstand the instructions.
--------------------------------------
I could spell long words very fast.
I could misspell long words very fast.
--------------------------------------------
Having breakfast is essential every morning.
Having breakfast is nonessential every morning.
------------------------------------------------
The last book contains too many sense topics.
The last book contains too many nonsense topics.

un specific
un expected
mis treatment
im posible
dis missed
ir responsible
in credible
in sane
il legible

That speech is apolitical.
If you commit some illegal act, you will be in jail soon or later.
I misspell many words on english.

political symetric A apolitical asymmetric
Confort Agree dis disconfort disagree
Legal il ilegal
perfect im imperfect
organic in inorganic
regular ir irregular
Understand spell mis misunderstand mispell
essential sense non nonessential nonsense
predictable certain un unpredicable uncertain

  • CORRECT
  • INCORRECT
    -INCORRECT
  • CORRECT
Hello ticher
✓ I disagree with you on that point. ✓ In this state, it is illegal for anyone under the age 21 to drink alcohol. ✓ She expressed herself in clear terms that no one could misunderstand.

#PlatziEnglishAcademy copy and paste, for nothing

Organized = Disoranized
Correct = Incorrect
Reliable = Unreliable
Sexual = Asexual
Believer = Non-believer
Possible = Impossible
Conceived = Ill-conceived
*Refutable = Irrefutable
Adventure = Misadventure

I woud like to reeead my favorite book this summer
My teacher made me rewrite my assignment
That advertisement is very misleading

  1. correct
  2. incorrect
    3.incorrect
  3. incorrect
  4. correct

Excelente

prefixes that are used when you want to deny something or prefixes that are used in negations. we have “a” when we want to say the opposite of something. “Political”, “apolitical”, “Symmetric” “asymmetric”
“Dis” (In/De), “comfort” “discomfort” “agree” “disagree”
“il”, “im”, “in” and “go”. They are similar, true. But they change depending on the word that comes after. “legal” “illegal” “Perfect” “imperfect”
“Mis” “understand” “misunderstand”
“Non” “Essential” “nonessential” “Sense”, “nonsense”
“a” “Predictable”, "unpredictable"
These prefixes help you to negate actions or characteristics without using a negative word.
“I need to unpack tonight”
“Are you insane? I won’t do that.”
“That’s very unlikely”
“This is completely immoral”
“You can disregard my email”

Thanks!

  • correct

  • incorrect

  • incorrect

  • incorrect

  • correct

  1. correct
  2. incorrect
  3. incorrect
  4. incorrect
  5. correct

Usign a specific prefixes you can negate.
anybody; anything; anywhere (any)
unknow; unhelp (un)
Incorrect; incomplete (in)
these are few examples

your house looks asymmetric, that is why I don´t like it.
Sorry but I disagree with this situation, I need to go out.
your method is illegal, so please stop!
Inorganic products are unhealthy.
all bodies are imperfect, so love yourself as you are.

thanks

I misspelled the word.
I misunderstood the exercise.

Time to practice!

  • The painting was imperfect, but it’s really beautiful anyway.
  • I always misspell “immoral”
  • She misunderstood me!
  • The teacher is unpredictable.
  • The food is inorganic.
  • I disagree with you, but that’s okay.

Time to practice!

  1. Correct
  2. Incorrect. It’s “Insane”
  3. Incorrect. It’s “improbable”
  4. Correct.
  5. Correct.
with

He desagrees with me.
This is an asymmetric situation.
Life is unpredictable.

  • Drinking alcohol at eighteen is illegal in the United States.
  1. I need to unpack tonight. CORRECT
  2. Are you disane? I won´t do that. INCORRECT
  3. That´s very unpropable. INCORRECT
  4. This is totally inmoral. INCORRECT.
  5. You can disregard my email. CORRECT.
  • Its unlikely that Peru will go to the World Cup.
  • She is unhappy because her boyfriend was texting on instagra m with others girls.
  • Your project is nonsense, try to avoid using a lot text.
  • I don’t have patience with the kids.

  • I’m impatience with the kids.

political

hello

yes

My answers:

  • correct
  • incorrect
  • incorrect
  • correct
  • correct

I missed one haha

  1. Correct
  2. Incorrect
  3. Incorrect.
  4. Correct.
  5. Correct

Organized = Disoranized
Correct = Incorrect
Reliable = Unreliable
Sexual = Asexual
Believer = Non-believer
Possible = Impossible
Conceived = Ill-conceived
*Refutable = Irrefutable
Adventure = Misadventure…

Organized = Disoranized
Correct = Incorrect
Reliable = Unreliable
Sexual = Asexual
Believer = Non-believer

I need to unpack tonight. Correct (Unpack)

Are you disane? I won´t do that. Incorrect (Insane)

That´s very unprobable. Incorrect (Umprobable)

This is totally inmoral. Incorrect (Immoral)

You can disregard my email. Correct (Disregard)

I feel uncomfortable without my bicycle.

Was impolite the words that you use.

I traveled illegal in that travel.

To drink a lot of Coke is unhealthy.

Was immature to show all your skills.

I found two misspelled words in the list

Comfort & Discomfort with “m” not n

<John was being completely ++discomforting++ with hotel services., while now he seems to be nicely ++**comfortable++> 

gracias

Negations for

a
Very good

Soo good

I need to unpack tonight
Are you insane? I won´t do that
That’s very improbable
This is totally immoral
Yo can disregard my email

uncomfortable
illegal,
improbably
immoral
disagree
irregular…
impatient
imposible
unhealthy

Make some examples using the prefixes that show us in class and new ones:
Her irresistible smile left me immobile.
Our team played uncomfortably and irregularly shaped. We are dissatisfied with the result.
The problem is illogical, its solution is unknown or impossible.
His dress is unusual and quite informal. I think that it is disconnected from what is used now.
Your inappropriate and unpredictable behavior brought me much dislike.
This party is uninteresting. Let’s disappear.
The boy misread it because the text was misspelled. I feel unable to read it too.
The misuse of software is disadvantageous and inefficient for a good user experience.
The mistreatment of animals is incorrect and very unkind.
Eating disorders are unhealthy. You will have unexpected problems in the future.

  • Some bakers like to decorate their cake symmetrically but it’s possibly and beautifull to do it asymmetrically.
  • When you are driving, you can make some illegal things, for instance to drive in wrong way, but that’s dangerous,it is better to do legal things.
  • Some of my friends are very insane, but others are sane
  • Achromatic
  • Disrespect
  • Illogic
  • Impenetrable
  • Inactivate
  • Irrelevant
  • Misplaced
  • non-toxic
  • Uncapable

I need to unpack tonight R//no
Are you insane? I won´t do that R//yes
That´s very improbable R//NO
This is totally immoral R/NO
You can disregard my email R//YES

Exercise

  1. I need to unpack tonight.
  2. Are you insane? I won´t do that.
  3. That’s very improbable.
  4. This is immoral.
  5. You can disregard my email.