1.burn, burned, burned
2.-
3.forgive, forgave, forgiven
4.leave, left, left
5.feed, fed, fed
6.-
7.-
8.-
9.forget, forgot, forgotten
10.-
11.hold, held, held
12.-
13.bulid, bulit, bulit
14.learn, learned, learned
15.wear,wore, worn
16.-
17.swim, swam, swum
18.see, saw, seen
19.wake ,woke ,woken
20.send, sent, sent