I can yelp you can yelp he can yelp we can yelp you can yelp they can yelp
Forme en V-ing
I can be yelping you can be yelping he can be yelping we can be yelping you can be yelping they can be yelping
Perfect
I can have yelped you can have yelped he can have yelped we can have yelped you can have yelped they can have yelped
Perfect en V-ing
I can have been yelping you can have been yelping he can have been yelping we can have been yelping you can have been yelping they can have been yelping
Négation
Forme simple
I cannot yelp you cannot yelp he cannot yelp we cannot yelp you cannot yelp they cannot yelp
Forme en V-ing
I cannot be yelping you cannot be yelping he cannot be yelping we cannot be yelping you cannot be yelping they cannot be yelping
Perfect
I cannot have yelped you cannot have yelped he cannot have yelped we cannot have yelped you cannot have yelped they cannot have yelped
Perfect en V-ing
I cannot have been yelping you cannot have been yelping he cannot have been yelping we cannot have been yelping you cannot have been yelping they cannot have been yelping
Forme interrogative
Forme simple
can I yelp? can you yelp? can he yelp? can we yelp? can you yelp? can they yelp?
Forme en V-ing
can I be yelping? can you be yelping? can he be yelping? can we be yelping? can you be yelping? can they be yelping?
Perfect
can I have yelped? can you have yelped? can he have yelped? can we have yelped? can you have yelped? can they have yelped?
Perfect en V-ing
can I have been yelping? can you have been yelping? can he have been yelping? can we have been yelping? can you have been yelping? can they have been yelping?
Forme interro-négative
Forme simple
can I not yelp? can you not yelp? can he not yelp? can we not yelp? can you not yelp? can they not yelp?
Forme en V-ing
can I not be yelping? can you not be yelping? can he not be yelping? can we not be yelping? can you not be yelping? can they not be yelping?
Perfect
can I not have yelped? can you not have yelped? can he not have yelped? can we not have yelped? can you not have yelped? can they not have yelped?
Perfect en V-ing
can I not have been yelping? can you not have been yelping? can he not have been yelping? can we not have been yelping? can you not have been yelping? can they not have been yelping?