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