1.Last saturday ,we danced until we've been so tired.
2.She stayed up until 3:00 Am
3.We should wait until she comes.
4.In Romania you have to go to school,until 18 years old
5.They didnt't talk to me until i've becomed friendly and funny
6.i worked for a French company until i've been fired(=fired inseamna dat afara)
7.We won't play until he comes.
coroana ? :)