English verb conjugation
CAN CONCERTIZE

Regular verb: concertize - concertized - concertized

Affirmation

Simple form	V-ing form
I can concertize you can concertize he can concertize we can concertize you can concertize they can concertize	I can be concertizing you can be concertizing he can be concertizing we can be concertizing you can be concertizing they can be concertizing
Perfect	V-ing perfect
I can have concertized you can have concertized he can have concertized we can have concertized you can have concertized they can have concertized	I can have been concertizing you can have been concertizing he can have been concertizing we can have been concertizing you can have been concertizing they can have been concertizing

Negation

Simple form	V-ing form
I cannot concertize you cannot concertize he cannot concertize we cannot concertize you cannot concertize they cannot concertize	I cannot be concertizing you cannot be concertizing he cannot be concertizing we cannot be concertizing you cannot be concertizing they cannot be concertizing
Perfect	V-ing perfect
I cannot have concertized you cannot have concertized he cannot have concertized we cannot have concertized you cannot have concertized they cannot have concertized	I cannot have been concertizing you cannot have been concertizing he cannot have been concertizing we cannot have been concertizing you cannot have been concertizing they cannot have been concertizing

Interrogative form

Simple form	V-ing form
can I concertize? can you concertize? can he concertize? can we concertize? can you concertize? can they concertize?	can I be concertizing? can you be concertizing? can he be concertizing? can we be concertizing? can you be concertizing? can they be concertizing?
Perfect	V-ing perfect
can I have concertized? can you have concertized? can he have concertized? can we have concertized? can you have concertized? can they have concertized?	can I have been concertizing? can you have been concertizing? can he have been concertizing? can we have been concertizing? can you have been concertizing? can they have been concertizing?

Interro-negative form

Simple form	V-ing form
can I not concertize? can you not concertize? can he not concertize? can we not concertize? can you not concertize? can they not concertize?	can I not be concertizing? can you not be concertizing? can he not be concertizing? can we not be concertizing? can you not be concertizing? can they not be concertizing?
Perfect	V-ing perfect
can I not have concertized? can you not have concertized? can he not have concertized? can we not have concertized? can you not have concertized? can they not have concertized?	can I not have been concertizing? can you not have been concertizing? can he not have been concertizing? can we not have been concertizing? can you not have been concertizing? can they not have been concertizing?