Выразите мысль в прошедшем и будущем времени,изменяя обстоятельство времени при необходимости.
1. I can do it now. 2.He says that I may use his phone. 3.He must go there now. 4. you ought to be more attentive. 5.He need not write the letter.

в прошедшем  1. I could do it then. 2. He said that I was allowed to use his phone. 3. He had to go there then. 4. You should have been more attentive. 5. He did not have to write the letter. в будущем 1. I will be able do it later. 2. He will say that I will be allowed to use his phone. 3. He will have to go there later. 4. You will have to be more attentive in the future. 5. He won't have to write the letter.