Modals of deduction

Might =possibly true

He might be into you .

Can't = definitely not true.

He can't be at home. His lights are off.

Must = something is definitely true

He must be her boyfriend. I saw him kissing her.

might, can't, must

Modals of deduction: might, must, can't

We use MIGHT MUST CAN'T

• To talk about how sure/certain we are about things.

  • They must be together = high positive certainty.

  • They might be together = mid certainty.

  • They can't be together = high negative certainty.

Subject | Subject

Some text here about the topic of discussion

​He might be having a party.

He may be having a party.

He could be a having a party.

Might = may = could

He might be having a party.

He can be having a party.

Can ≠ might

He might be having a party.

He must be going out with her.

They can't be travelling alone.

Gerund + might, must, can't

Multiple Choice

Match the beginning and ending of the sentence.

He can't be a teacher,

• he is wearing a school uniform.

• he is looking at a map.

• he ate it all alone.

• he never has time.

Multiple Choice

Match the beginning and ending of the sentence.

He must be lost,

• he is wearing a school uniform.

• he is looking at the map.

• he is wearing a swimsuit.

• he never has the time.

Multiple Choice

Match the beginning and ending of the sentence.

He absolutely never has the time,

• he might not be coming.

• he can't be coming.

• he can be coming.

• he must be coming.

Multiple Choice

Match the beginning and ending of the sentence.

She is so beautiful,

• she might have a boyfriend.

• she can't have a boyfriend.

• she couldn't have a boyfriend.

• she must have a boyfriend.

Multiple Choice

Match the beginning and ending of the sentence.

They go running everyday,

• they must be really fit.

• they can't be fit.

• they may be fit.

• they could be fit.