No vs. not

Modals: can, can’t, might and more

Modals: must, have to, shall and more

Uses of the past

Uses of infinitives

Discourse markers: you know, actually, mind you and more

Discourse markers: To tell you the truth, you see and more

Cleft sentences with It and What

Collective nouns, quantities, amounts, and infinitive nouns

And, either/or, neither/nor and more

Using second and third conditionals to add emphasis

Indefinite articles: a and an

Do vs. make

No vs. not

Travel and hobbies

Health and food

Family / friends and education

How to express ideas clearly in the business atmosphere