I'd be buttering you'd be buttering he'd be buttering we'd be buttering you'd be buttering they'd be buttering
Perfect
I should've buttered you should've buttered he should've buttered we should've buttered you should've buttered they should've buttered
Perfect en V-ing
I should've been buttering you should've been buttering he should've been buttering we should've been buttering you should've been buttering they should've been buttering
Négation
Forme simple
I shouldn't butter you shouldn't butter he shouldn't butter we shouldn't butter you shouldn't butter they shouldn't butter
Forme en V-ing
I shouldn't be buttering you shouldn't be buttering he shouldn't be buttering we shouldn't be buttering you shouldn't be buttering they shouldn't be buttering
Perfect
I shouldn't have buttered you shouldn't have buttered he shouldn't have buttered we shouldn't have buttered you shouldn't have buttered they shouldn't have buttered
Perfect en V-ing
I shouldn't have been buttering you shouldn't have been buttering he shouldn't have been buttering we shouldn't have been buttering you shouldn't have been buttering they shouldn't have been buttering
Forme interrogative
Forme simple
should I butter? should you butter? should he butter? should we butter? should you butter? should they butter?
Forme en V-ing
should I be buttering? should you be buttering? should he be buttering? should we be buttering? should you be buttering? should they be buttering?
Perfect
should I have buttered? should you have buttered? should he have buttered? should we have buttered? should you have buttered? should they have buttered?
Perfect en V-ing
should I have been buttering? should you have been buttering? should he have been buttering? should we have been buttering? should you have been buttering? should they have been buttering?
Forme interro-négative
Forme simple
shouldn't I butter? shouldn't you butter? shouldn't he butter? shouldn't we butter? shouldn't you butter? shouldn't they butter?
Forme en V-ing
shouldn't I be buttering? shouldn't you be buttering? shouldn't he be buttering? shouldn't we be buttering? shouldn't you be buttering? shouldn't they be buttering?
Perfect
shouldn't I have buttered? shouldn't you have buttered? shouldn't he have buttered? shouldn't we have buttered? shouldn't you have buttered? shouldn't they have buttered?
Perfect en V-ing
shouldn't I have been buttering? shouldn't you have been buttering? shouldn't he have been buttering? shouldn't we have been buttering? shouldn't you have been buttering? shouldn't they have been buttering?