English verb conjugation
CAN CONCRETIZE

Regular verb: concretize - concretized - concretized

Affirmation

Simple form	V-ing form
I can concretize you can concretize he can concretize we can concretize you can concretize they can concretize	I can be concretizing you can be concretizing he can be concretizing we can be concretizing you can be concretizing they can be concretizing
Perfect	V-ing perfect
I can have concretized you can have concretized he can have concretized we can have concretized you can have concretized they can have concretized	I can have been concretizing you can have been concretizing he can have been concretizing we can have been concretizing you can have been concretizing they can have been concretizing

Negation

Simple form	V-ing form
I can't concretize you can't concretize he can't concretize we can't concretize you can't concretize they can't concretize	I can't be concretizing you can't be concretizing he can't be concretizing we can't be concretizing you can't be concretizing they can't be concretizing
Perfect	V-ing perfect
I can't have concretized you can't have concretized he can't have concretized we can't have concretized you can't have concretized they can't have concretized	I can't have been concretizing you can't have been concretizing he can't have been concretizing we can't have been concretizing you can't have been concretizing they can't have been concretizing

Interrogative form

Simple form	V-ing form
can I concretize? can you concretize? can he concretize? can we concretize? can you concretize? can they concretize?	can I be concretizing? can you be concretizing? can he be concretizing? can we be concretizing? can you be concretizing? can they be concretizing?
Perfect	V-ing perfect
can I have concretized? can you have concretized? can he have concretized? can we have concretized? can you have concretized? can they have concretized?	can I have been concretizing? can you have been concretizing? can he have been concretizing? can we have been concretizing? can you have been concretizing? can they have been concretizing?

Interro-negative form

Simple form	V-ing form
can't I concretize? can't you concretize? can't he concretize? can't we concretize? can't you concretize? can't they concretize?	can't I be concretizing? can't you be concretizing? can't he be concretizing? can't we be concretizing? can't you be concretizing? can't they be concretizing?
Perfect	V-ing perfect
can't I have concretized? can't you have concretized? can't he have concretized? can't we have concretized? can't you have concretized? can't they have concretized?	can't I have been concretizing? can't you have been concretizing? can't he have been concretizing? can't we have been concretizing? can't you have been concretizing? can't they have been concretizing?