Refer the sentences to the past and to the future.1 we can wake up very early.2 they can become architects.3 he can become rich.4 she can go on a trip.

1 We could wake up very early. We will be able to wake up very early.
2 They could become architects. They will be able to become architects.
3 He could become rich. He will be able to become rich.
4 She could go on a trip. She will be able to go on a trip.