1.
a) I can play tennis very well.
b) She mustn't walk on the grass. It is Forbidden.
c) You should go to bed. You look tired!
d) This must be his house because he said that his is blue and this is red.
e) We must hand in our Project before midnight if we want to pass.
f) She can't come to the cinema if she doesn't want to.
g) Could you turn down the radio a little bit, please?
h) It might rain in 3 weeks. I'm not sure.
2.
a) Sue has gone out. I can't see her.
b) He looks really tired- He has been awake all night.
c) If I had gone to the sales, I'm sure I would have bought something
d) You didn't have to pay us today. It was not necessary.
e) She was very upset because you didn't go to her birthday party. You should have gone.
f) I couldn't call her by her name because I didn't know it at all.
3.
a) Perhaps she took the money. She might have taken the money.
b) It's not necessary that you come with me. I'm not afraid. You don't have to come with me.
c) I am sure she didn't lock the door. She couldn't have locked the door.
d) It was impossible that he scored the goal because he didn't play that game. He couldn't have scored the goal.
e) I suppose Jack missed the bus. Jack must have missed the bus.
f) John knows how to cook. John can cook.
4.
a) If I were you, I would study harder. You should study harder.
b) It wasn't necessary to bring that coat. She needn't have brought that coat.
c) Using the smartphone in the class is banned. Students mustn't use the smartphone in the class.
d) Perhaps she fell asleep. She might have fallen asleep.
e) I bet I looked silly in that costume. I must have looked silly in that costume.
f) You mustn't talk during the exam. You aren't allowed to talk during the exam.
Parent Tip: Review the logic above to help your child master the concept of modal verbs worksheet.
