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