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