1.did
2.were
3.did
4.said
5.didn't
6.were
7.were
8.was
9.were
10.were
11.she
12.did
13.were
14.weren't
regular:
like-liked
start-started
stop-stoped
study-sdudied
travel-travelled
irregular:
come-came/come
do-did/done
go-went/gone
teach-taught/taught
win-won/won
3.aabb
4. 1.what did 2.how did 3.why did 4.where did 5.why didn't 6.why didn't