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