Lesson 12
Grammar in Use
The use of modal verbs must/have to,
mustn’t, should/ought to for
obligation, prohibition and advice in
Trang 2Exercise 1 Correct the errors in verb forms Write the correct verb form in your copybooks.
He must took part in a clean-up campaign.
He can to adopt an animal.
He should helps the environment.
She can creating a natural habitat.
Trang 3How can you comment on the corrections?
He (must took )must take part in a clean-up
campaign.
He (can to adopt) can adopt an animal.
He (should helps) should help the environment.
She (can creating) can create a natural habitat.
(Do you must) Must you go to a fundraiser?
Trang 4MODALS: can/could, may/might, must, shall/ should, will/ would
are followed by the bare infinitive.
don’t take –s in the 3 person singular either in modal or main verb.
don’t take –ing or –ed suffixes.
No do/does for questions and negations
Trang 10This is the sign of private property
You have to stay out of this place