I could butt you could butt he could butt we could butt you could butt they could butt
Forme en V-ing
I could be butting you could be butting he could be butting we could be butting you could be butting they could be butting
Perfect
I could have butted you could have butted he could have butted we could have butted you could have butted they could have butted
Perfect en V-ing
I could have been butting you could have been butting he could have been butting we could have been butting you could have been butting they could have been butting
Négation
Forme simple
I couldn't butt you couldn't butt he couldn't butt we couldn't butt you couldn't butt they couldn't butt
Forme en V-ing
I couldn't be butting you couldn't be butting he couldn't be butting we couldn't be butting you couldn't be butting they couldn't be butting
Perfect
I couldn't have butted you couldn't have butted he couldn't have butted we couldn't have butted you couldn't have butted they couldn't have butted
Perfect en V-ing
I couldn't have been butting you couldn't have been butting he couldn't have been butting we couldn't have been butting you couldn't have been butting they couldn't have been butting
Forme interrogative
Forme simple
could I butt? could you butt? could he butt? could we butt? could you butt? could they butt?
Forme en V-ing
could I be butting? could you be butting? could he be butting? could we be butting? could you be butting? could they be butting?
Perfect
could I have butted? could you have butted? could he have butted? could we have butted? could you have butted? could they have butted?
Perfect en V-ing
could I have been butting? could you have been butting? could he have been butting? could we have been butting? could you have been butting? could they have been butting?
Forme interro-négative
Forme simple
couldn't I butt? couldn't you butt? couldn't he butt? couldn't we butt? couldn't you butt? couldn't they butt?
Forme en V-ing
couldn't I be butting? couldn't you be butting? couldn't he be butting? couldn't we be butting? couldn't you be butting? couldn't they be butting?
Perfect
couldn't I have butted? couldn't you have butted? couldn't he have butted? couldn't we have butted? couldn't you have butted? couldn't they have butted?
Perfect en V-ing
couldn't I have been butting? couldn't you have been butting? couldn't he have been butting? couldn't we have been butting? couldn't you have been butting? couldn't they have been butting?