EXERCISE

Past future, Past perfect, and Past perfect continous

1. Past future

    Example: 1. I would learn english (active)

                    2. English would be learned by me (passive)

2. Past perfect

    Example: 1. I had written a message (active)

                    2. A message had been written by me (passive)

3. Past perfect continous

    Example: 1. I had been playing guitar since 3 o'clock (active)

                    2. Guitar had been being played since 3 o'clock (passive)