Attention, ce verbe peut ne pas exister, la conjugaison est donnée à titre d'exemple.
Affirmation
Forme simple
I could add add you could add add he could add add we could add add you could add add they could add add
Forme en V-ing
I could be add adding you could be add adding he could be add adding we could be add adding you could be add adding they could be add adding
Perfect
I could have add added you could have add added he could have add added we could have add added you could have add added they could have add added
Perfect en V-ing
I could have been add adding you could have been add adding he could have been add adding we could have been add adding you could have been add adding they could have been add adding
Négation
Forme simple
I couldn't add add you couldn't add add he couldn't add add we couldn't add add you couldn't add add they couldn't add add
Forme en V-ing
I couldn't be add adding you couldn't be add adding he couldn't be add adding we couldn't be add adding you couldn't be add adding they couldn't be add adding
Perfect
I couldn't have add added you couldn't have add added he couldn't have add added we couldn't have add added you couldn't have add added they couldn't have add added
Perfect en V-ing
I couldn't have been add adding you couldn't have been add adding he couldn't have been add adding we couldn't have been add adding you couldn't have been add adding they couldn't have been add adding
Forme interrogative
Forme simple
could I add add? could you add add? could he add add? could we add add? could you add add? could they add add?
Forme en V-ing
could I be add adding? could you be add adding? could he be add adding? could we be add adding? could you be add adding? could they be add adding?
Perfect
could I have add added? could you have add added? could he have add added? could we have add added? could you have add added? could they have add added?
Perfect en V-ing
could I have been add adding? could you have been add adding? could he have been add adding? could we have been add adding? could you have been add adding? could they have been add adding?
Forme interro-négative
Forme simple
couldn't I add add? couldn't you add add? couldn't he add add? couldn't we add add? couldn't you add add? couldn't they add add?
Forme en V-ing
couldn't I be add adding? couldn't you be add adding? couldn't he be add adding? couldn't we be add adding? couldn't you be add adding? couldn't they be add adding?
Perfect
couldn't I have add added? couldn't you have add added? couldn't he have add added? couldn't we have add added? couldn't you have add added? couldn't they have add added?
Perfect en V-ing
couldn't I have been add adding? couldn't you have been add adding? couldn't he have been add adding? couldn't we have been add adding? couldn't you have been add adding? couldn't they have been add adding?