Mastering Modal Verbs: Can, Can't, and Have To

Which sentence correctly uses 'can' to express ability?

• I can swim very fast.

• I can't understand this math problem.

• I have to read this book for class.

• Can you help me?

Choose the sentence that correctly uses 'can't' to express inability.

• She can play the piano.

• They have to go to school early.

• He can't see without his glasses.

• Can I borrow your pen?

Select the sentence that correctly uses 'have to' to express obligation.

• I can ride a bike.

• We have to finish our homework before we can go out.

• She can't come to the party tonight.

• Can you answer the question?

Which sentence correctly differentiates between 'can' and 'can't'?

• I can play the guitar, but I can't play the violin.

• I have to play the guitar and the violin.

• Can I play the guitar or the violin?

• I can't have to play the guitar.

Choose the sentence that correctly uses 'have to' in a positive sentence.

• You don't have to go to the doctor if you feel fine.

• They have to attend the meeting tomorrow.

• Have to we leave now?

• I can have to do it later.

Which question correctly uses 'can'?

• Can you help me with my homework?

• You can help me with my homework?

• Can't you help me with my homework?

• Have to you help me with my homework?

Select the question that correctly uses 'can't'.

• Can't you see what's happening?

• Can you not see what's happening?

• You can't see what's happening?

• All of the above are correct.

Which sentence correctly expresses an obligation using 'have to'?

• I have to take my dog for a walk every morning.

• I can take my dog for a walk every morning.

• I can't take my dog for a walk every morning.

• Can I take my dog for a walk every morning?

Choose the sentence where 'can' is used correctly to express ability.

• Can she speaks three languages fluently?

• She can speak three languages fluently.

• She can't speaks three languages fluently.

• She have to speak three languages fluently.

Select the sentence that correctly uses 'can't' to express inability.

• I can't find my keys anywhere.

• I can find my keys anywhere.

• I have to find my keys.

• Can I find my keys anywhere?