Réponse :
1- All the students should get good marks.
2- All the students should have gotten good marks.
3- I should have left earlier than seven.
4- I should leave earlier than seven.
5- Why should I have not told him the truth.
6- Why should I not tell him the truth.
7- Everything should be alright.
8- Everything should have been alright.
9- It should work.
10-It should have worked.
hope this helps, bonne chance :)
