English verb conjugation
CAN EXTEMPORIZE

Regular verb: extemporize - extemporized - extemporized

Affirmation

Simple form	V-ing form
I can extemporize you can extemporize she can extemporize we can extemporize you can extemporize they can extemporize	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	V-ing 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	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

Negation

Simple form	V-ing form
I cannot extemporize you cannot extemporize she cannot extemporize we cannot extemporize you cannot extemporize they cannot extemporize	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	V-ing 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	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

Interrogative form

Simple form	V-ing form
can I extemporize? can you extemporize? can she extemporize? can we extemporize? can you extemporize? can they extemporize?	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	V-ing 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?	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?

Interro-negative form

Simple form	V-ing form
can I not extemporize? can you not extemporize? can she not extemporize? can we not extemporize? can you not extemporize? can they not extemporize?	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	V-ing 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?	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?