1.Usually I work in the garden with my aunt after school.

2.Margaret is working in the garden at the moment.

3.We have already worked in the garden for 2 hours.

4.Sam has been working in the garden all day long.

5.They used to work in the garden a couple of years ago.

6.Our neighbours were working in the garden while we were having dinner.

7.Lily had already worked in the garden before we arrived.

8.When Mrs Phelps entered the mansion we had been working in the garden.

9.Tomorrow I will work in the garden if I do my homework.

10.Jonathan will be working in the garden by 4 o'clock.

11.I will have worked in the garden by 2 o'clock unless it rains.

12.Monica will have been working in the garden by this time tomorrow.