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