Question

Подставьте следующие предложения в прошедшее и будущее время, используя подходящий эквивалент модальных глаголов.
1) We can try this new method. 2) She must go to Moscow. 3) They may switch off the device.

Answer 1

1) We shall be able to try this new method. 2) She will have to go to Moscow. 3) They will be allowed to switch off the device. 

1) We could try this new method. 2) She had to go to Moscow. 3) They were allowed to switch off the device.