Réponse :
1) am = was
2) am = was
3) am = was
4) try = tried
5) are = were
6) have = had
7) is = was
8) know = knew
9) wants = wanted
10) startes = started
11) know = knew
12) use = used
13) is = was
14) have = had
15) obliged = obliged
16) is = was
17) sit = set
18) start = started
jsuis pas sure pour certains (obliged)