1. Put the verbs into the Present Simple, the Present Continuous, the Past Simple, the Present Perfect and the Future Simple.
2. Write the sentences a) in the negative; b) in the interrogative.

1. Peggy (to watch) her little brother playing in the yard now.
2. His relatives (to grow) vegetables in the kitchen garden every summer.
3. Fred (to ride) a horse the other day.
4. They usually (to travel) round Europe in July.
5. Martin and Sidney (to fish) by the river yesterday evening.
6. She (to like) to sit in the garden in summer when the weather (to be) hot.
7. We (to go) on a trip two weeks ago.

1. Peggy is watching her little brother playing in the yard now.

Peggy isn't watching her little brother playing in the yard now.

Is Peggy watching  her little brother playing in the yard now?

2. His relatives grow vegetables in the kitchen garden every summer.

His relatives don't grow vegetables in the kitchen garden every summer.

Do his relatives grow vegetables in the kitchen garden every summer?

3. Fred rode a horse the other day.

Fred didn't ride a horse the other day.

Did Fred ride a horse the other day?

4. They usually travel round Europe in July.

They don't usually travel round Europe in July.

Do they usually travel round Europe in July?

5. Martin and Sidney were fishing by the river yesterday evening.

Martin and Sidney weren't fishing by the river yesterday evening.

Were Martin and Sidney fishing by the river yesterday evening?

6. She likes to sit in the garden in summer when the weather is hot.

She doesn't like to sit in the garden in summer when the weather isn't hot.

Does she like to sit in the garden in summer when the weather is hot?

7. We went on a trip two weeks ago.

We didn't go on a trip two weeks ago.

Did we go on a trip two weeks ago?