I can systematize you can systematize she can systematize we can systematize you can systematize they can systematize
Forme en V-ing
I can be systematizing you can be systematizing she can be systematizing we can be systematizing you can be systematizing they can be systematizing
Perfect
I can have systematized you can have systematized she can have systematized we can have systematized you can have systematized they can have systematized
Perfect en V-ing
I can have been systematizing you can have been systematizing she can have been systematizing we can have been systematizing you can have been systematizing they can have been systematizing
Négation
Forme simple
I cannot systematize you cannot systematize she cannot systematize we cannot systematize you cannot systematize they cannot systematize
Forme en V-ing
I cannot be systematizing you cannot be systematizing she cannot be systematizing we cannot be systematizing you cannot be systematizing they cannot be systematizing
Perfect
I cannot have systematized you cannot have systematized she cannot have systematized we cannot have systematized you cannot have systematized they cannot have systematized
Perfect en V-ing
I cannot have been systematizing you cannot have been systematizing she cannot have been systematizing we cannot have been systematizing you cannot have been systematizing they cannot have been systematizing
Forme interrogative
Forme simple
can I systematize? can you systematize? can she systematize? can we systematize? can you systematize? can they systematize?
Forme en V-ing
can I be systematizing? can you be systematizing? can she be systematizing? can we be systematizing? can you be systematizing? can they be systematizing?
Perfect
can I have systematized? can you have systematized? can she have systematized? can we have systematized? can you have systematized? can they have systematized?
Perfect en V-ing
can I have been systematizing? can you have been systematizing? can she have been systematizing? can we have been systematizing? can you have been systematizing? can they have been systematizing?
Forme interro-négative
Forme simple
can I not systematize? can you not systematize? can she not systematize? can we not systematize? can you not systematize? can they not systematize?
Forme en V-ing
can I not be systematizing? can you not be systematizing? can she not be systematizing? can we not be systematizing? can you not be systematizing? can they not be systematizing?
Perfect
can I not have systematized? can you not have systematized? can she not have systematized? can we not have systematized? can you not have systematized? can they not have systematized?
Perfect en V-ing
can I not have been systematizing? can you not have been systematizing? can she not have been systematizing? can we not have been systematizing? can you not have been systematizing? can they not have been systematizing?