I can leaf you can leaf she can leaf we can leaf you can leaf they can leaf
Forme en V-ing
I can be leafing you can be leafing she can be leafing we can be leafing you can be leafing they can be leafing
Perfect
I can have leafed you can have leafed she can have leafed we can have leafed you can have leafed they can have leafed
Perfect en V-ing
I can have been leafing you can have been leafing she can have been leafing we can have been leafing you can have been leafing they can have been leafing
Négation
Forme simple
I cannot leaf you cannot leaf she cannot leaf we cannot leaf you cannot leaf they cannot leaf
Forme en V-ing
I cannot be leafing you cannot be leafing she cannot be leafing we cannot be leafing you cannot be leafing they cannot be leafing
Perfect
I cannot have leafed you cannot have leafed she cannot have leafed we cannot have leafed you cannot have leafed they cannot have leafed
Perfect en V-ing
I cannot have been leafing you cannot have been leafing she cannot have been leafing we cannot have been leafing you cannot have been leafing they cannot have been leafing
Forme interrogative
Forme simple
can I leaf? can you leaf? can she leaf? can we leaf? can you leaf? can they leaf?
Forme en V-ing
can I be leafing? can you be leafing? can she be leafing? can we be leafing? can you be leafing? can they be leafing?
Perfect
can I have leafed? can you have leafed? can she have leafed? can we have leafed? can you have leafed? can they have leafed?
Perfect en V-ing
can I have been leafing? can you have been leafing? can she have been leafing? can we have been leafing? can you have been leafing? can they have been leafing?
Forme interro-négative
Forme simple
can I not leaf? can you not leaf? can she not leaf? can we not leaf? can you not leaf? can they not leaf?
Forme en V-ing
can I not be leafing? can you not be leafing? can she not be leafing? can we not be leafing? can you not be leafing? can they not be leafing?
Perfect
can I not have leafed? can you not have leafed? can she not have leafed? can we not have leafed? can you not have leafed? can they not have leafed?
Perfect en V-ing
can I not have been leafing? can you not have been leafing? can she not have been leafing? can we not have been leafing? can you not have been leafing? can they not have been leafing?