I can extemporize you can extemporize she can extemporize we can extemporize you can extemporize they can extemporize
Forme en V-ing
I can be extemporizing you can be extemporizing she can be extemporizing we can be extemporizing you can be extemporizing they can be extemporizing
Perfect
I can have extemporized you can have extemporized she can have extemporized we can have extemporized you can have extemporized they can have extemporized
Perfect en V-ing
I can have been extemporizing you can have been extemporizing she can have been extemporizing we can have been extemporizing you can have been extemporizing they can have been extemporizing
Négation
Forme simple
I cannot extemporize you cannot extemporize she cannot extemporize we cannot extemporize you cannot extemporize they cannot extemporize
Forme en V-ing
I cannot be extemporizing you cannot be extemporizing she cannot be extemporizing we cannot be extemporizing you cannot be extemporizing they cannot be extemporizing
Perfect
I cannot have extemporized you cannot have extemporized she cannot have extemporized we cannot have extemporized you cannot have extemporized they cannot have extemporized
Perfect en V-ing
I cannot have been extemporizing you cannot have been extemporizing she cannot have been extemporizing we cannot have been extemporizing you cannot have been extemporizing they cannot have been extemporizing
Forme interrogative
Forme simple
can I extemporize? can you extemporize? can she extemporize? can we extemporize? can you extemporize? can they extemporize?
Forme en V-ing
can I be extemporizing? can you be extemporizing? can she be extemporizing? can we be extemporizing? can you be extemporizing? can they be extemporizing?
Perfect
can I have extemporized? can you have extemporized? can she have extemporized? can we have extemporized? can you have extemporized? can they have extemporized?
Perfect en V-ing
can I have been extemporizing? can you have been extemporizing? can she have been extemporizing? can we have been extemporizing? can you have been extemporizing? can they have been extemporizing?
Forme interro-négative
Forme simple
can I not extemporize? can you not extemporize? can she not extemporize? can we not extemporize? can you not extemporize? can they not extemporize?
Forme en V-ing
can I not be extemporizing? can you not be extemporizing? can she not be extemporizing? can we not be extemporizing? can you not be extemporizing? can they not be extemporizing?
Perfect
can I not have extemporized? can you not have extemporized? can she not have extemporized? can we not have extemporized? can you not have extemporized? can they not have extemporized?
Perfect en V-ing
can I not have been extemporizing? can you not have been extemporizing? can she not have been extemporizing? can we not have been extemporizing? can you not have been extemporizing? can they not have been extemporizing?