I can founder you can founder he can founder we can founder you can founder they can founder
Forme en V-ing
I can be foundering you can be foundering he can be foundering we can be foundering you can be foundering they can be foundering
Perfect
I can have foundered you can have foundered he can have foundered we can have foundered you can have foundered they can have foundered
Perfect en V-ing
I can have been foundering you can have been foundering he can have been foundering we can have been foundering you can have been foundering they can have been foundering
Négation
Forme simple
I can't founder you can't founder he can't founder we can't founder you can't founder they can't founder
Forme en V-ing
I can't be foundering you can't be foundering he can't be foundering we can't be foundering you can't be foundering they can't be foundering
Perfect
I can't have foundered you can't have foundered he can't have foundered we can't have foundered you can't have foundered they can't have foundered
Perfect en V-ing
I can't have been foundering you can't have been foundering he can't have been foundering we can't have been foundering you can't have been foundering they can't have been foundering
Forme interrogative
Forme simple
can I founder? can you founder? can he founder? can we founder? can you founder? can they founder?
Forme en V-ing
can I be foundering? can you be foundering? can he be foundering? can we be foundering? can you be foundering? can they be foundering?
Perfect
can I have foundered? can you have foundered? can he have foundered? can we have foundered? can you have foundered? can they have foundered?
Perfect en V-ing
can I have been foundering? can you have been foundering? can he have been foundering? can we have been foundering? can you have been foundering? can they have been foundering?
Forme interro-négative
Forme simple
can't I founder? can't you founder? can't he founder? can't we founder? can't you founder? can't they founder?
Forme en V-ing
can't I be foundering? can't you be foundering? can't he be foundering? can't we be foundering? can't you be foundering? can't they be foundering?
Perfect
can't I have foundered? can't you have foundered? can't he have foundered? can't we have foundered? can't you have foundered? can't they have foundered?
Perfect en V-ing
can't I have been foundering? can't you have been foundering? can't he have been foundering? can't we have been foundering? can't you have been foundering? can't they have been foundering?