I could barn you could barn she could barn we could barn you could barn they could barn
Forme en V-ing
I could be barning you could be barning she could be barning we could be barning you could be barning they could be barning
Perfect
I could have barned you could have barned she could have barned we could have barned you could have barned they could have barned
Perfect en V-ing
I could have been barning you could have been barning she could have been barning we could have been barning you could have been barning they could have been barning
Négation
Forme simple
I couldn't barn you couldn't barn she couldn't barn we couldn't barn you couldn't barn they couldn't barn
Forme en V-ing
I couldn't be barning you couldn't be barning she couldn't be barning we couldn't be barning you couldn't be barning they couldn't be barning
Perfect
I couldn't have barned you couldn't have barned she couldn't have barned we couldn't have barned you couldn't have barned they couldn't have barned
Perfect en V-ing
I couldn't have been barning you couldn't have been barning she couldn't have been barning we couldn't have been barning you couldn't have been barning they couldn't have been barning
Forme interrogative
Forme simple
could I barn? could you barn? could she barn? could we barn? could you barn? could they barn?
Forme en V-ing
could I be barning? could you be barning? could she be barning? could we be barning? could you be barning? could they be barning?
Perfect
could I have barned? could you have barned? could she have barned? could we have barned? could you have barned? could they have barned?
Perfect en V-ing
could I have been barning? could you have been barning? could she have been barning? could we have been barning? could you have been barning? could they have been barning?
Forme interro-négative
Forme simple
couldn't I barn? couldn't you barn? couldn't she barn? couldn't we barn? couldn't you barn? couldn't they barn?
Forme en V-ing
couldn't I be barning? couldn't you be barning? couldn't she be barning? couldn't we be barning? couldn't you be barning? couldn't they be barning?
Perfect
couldn't I have barned? couldn't you have barned? couldn't she have barned? couldn't we have barned? couldn't you have barned? couldn't they have barned?
Perfect en V-ing
couldn't I have been barning? couldn't you have been barning? couldn't she have been barning? couldn't we have been barning? couldn't you have been barning? couldn't they have been barning?