I can prefer you can prefer she can prefer we can prefer you can prefer they can prefer
Forme en V-ing
I can be preferring you can be preferring she can be preferring we can be preferring you can be preferring they can be preferring
Perfect
I can have preferred you can have preferred she can have preferred we can have preferred you can have preferred they can have preferred
Perfect en V-ing
I can have been preferring you can have been preferring she can have been preferring we can have been preferring you can have been preferring they can have been preferring
Négation
Forme simple
I cannot prefer you cannot prefer she cannot prefer we cannot prefer you cannot prefer they cannot prefer
Forme en V-ing
I cannot be preferring you cannot be preferring she cannot be preferring we cannot be preferring you cannot be preferring they cannot be preferring
Perfect
I cannot have preferred you cannot have preferred she cannot have preferred we cannot have preferred you cannot have preferred they cannot have preferred
Perfect en V-ing
I cannot have been preferring you cannot have been preferring she cannot have been preferring we cannot have been preferring you cannot have been preferring they cannot have been preferring
Forme interrogative
Forme simple
can I prefer? can you prefer? can she prefer? can we prefer? can you prefer? can they prefer?
Forme en V-ing
can I be preferring? can you be preferring? can she be preferring? can we be preferring? can you be preferring? can they be preferring?
Perfect
can I have preferred? can you have preferred? can she have preferred? can we have preferred? can you have preferred? can they have preferred?
Perfect en V-ing
can I have been preferring? can you have been preferring? can she have been preferring? can we have been preferring? can you have been preferring? can they have been preferring?
Forme interro-négative
Forme simple
can I not prefer? can you not prefer? can she not prefer? can we not prefer? can you not prefer? can they not prefer?
Forme en V-ing
can I not be preferring? can you not be preferring? can she not be preferring? can we not be preferring? can you not be preferring? can they not be preferring?
Perfect
can I not have preferred? can you not have preferred? can she not have preferred? can we not have preferred? can you not have preferred? can they not have preferred?
Perfect en V-ing
can I not have been preferring? can you not have been preferring? can she not have been preferring? can we not have been preferring? can you not have been preferring? can they not have been preferring?