worked - found - met - though - was/were - played - watched - ordered - read - heard - could - lost - stood - walked - exchanged
1, visit - visited
2, work - worked
3, find - found
4, meet - met
5, think - thought
6, is /am - was/were
7, play - played
8, watch - wathced
9, order - ordered
10, read - read
11, hear - heard
12, can - could
13, lose - lost
14, stand - stood
15, walk - walked
16, exchange - exchanged
1, visit - visited
2, work - worked
3, find - found
4, meet - met
5, think - thought
6, is /am - was/were
7, play - played
8, watch - wathced
9, order - ordered
10, read - read
11, hear - heard
12, can - could
13, lose - lost
14, stand - stood
15, walk - walked
16, exchange - exchanged
