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