B2 Unit 5 Modals

We use these modals when there is a 50% possibility that something WAS true

• may have

• might have

• could have

• must have

• couldn't have

We use "______ have" when we are 90% certain that something WAS true.

We use "______ have" when we are 90% certain that something WASN'T true.

Which modal verbs express an obligation or necessity?

• had to

• needed to

• must

• couldn't

• ought to have

Which words can you use to express prohibition?

• weren't allowed

• couldn't

• shouldn't have

• oughtn't have

• needn't have

Which are followed by an infinitive WITHOUT 'to'?

• should

• ought

• need

• must

• had better