Modal Verbs

We use can to express...

• possibility in the future

• ability in the past

• ability in the present

We use could to express...

• possibility in the future

• ability in the past

• ability in the present

Is it correct to express ability in the future in this way: "I will can help you today"?

• Yes, because will and can are used together.

• No, because to express this idea we need to use will and be able to.

Why do we use managed to?

• To describe specific achievements in the past.

• To describe general achievements in the past.

What's the difference between must & have to?

• That both can be used in the present and the past, but not in the future.

• That both can be used in the present, but only have to can be used in the past and future.

What's the meaning of the sentence "You don't have to bring any food"?

• That it's forbidden to bring food.

• That it's not necessary to bring food, but I can do so if I want to.

Is it right to say that both mustn't & don't have to are used to express prohibition?

• Yes, both do that.

• No, only mustn't expresses prohibition.

• No, only don't have to expresses prohibition.

Which one is correct?

• She cans sing very well.

• She cans sings very well.

• She can sings very well.

• She can sing very well.

Which one is correct?

• You don't have to come early.

• You doesn't have to come early.

• You don't has to come early.

• You doesn't has to come early.

To express that someone isn't allowed to do something, which sentence is right?

• Harry doesn't have to arrive home late or his parents will be furious.

• Harry mustn't to arrive home late or his parents will be furious.

• Harry mustn't arrive home late or his parents will be furious.