English verb conjugation COULD CONCRETIZE

Regular verb: concretize - concretized - concretized

Affirmation

Simple form

I could concretize
you could concretize
he could concretize
we could concretize
you could concretize
they could concretize

V-ing form

I could be concretizing
you could be concretizing
he could be concretizing
we could be concretizing
you could be concretizing
they could be concretizing

Perfect

I could have concretized
you could have concretized
he could have concretized
we could have concretized
you could have concretized
they could have concretized

V-ing perfect

I could have been concretizing
you could have been concretizing
he could have been concretizing
we could have been concretizing
you could have been concretizing
they could have been concretizing

Negation

Simple form

I could not concretize
you could not concretize
he could not concretize
we could not concretize
you could not concretize
they could not concretize

V-ing form

I could not be concretizing
you could not be concretizing
he could not be concretizing
we could not be concretizing
you could not be concretizing
they could not be concretizing

Perfect

I could not have concretized
you could not have concretized
he could not have concretized
we could not have concretized
you could not have concretized
they could not have concretized

V-ing perfect

I could not have been concretizing
you could not have been concretizing
he could not have been concretizing
we could not have been concretizing
you could not have been concretizing
they could not have been concretizing

Interrogative form

Simple form

could I concretize?
could you concretize?
could he concretize?
could we concretize?
could you concretize?
could they concretize?

V-ing form

could I be concretizing?
could you be concretizing?
could he be concretizing?
could we be concretizing?
could you be concretizing?
could they be concretizing?

Perfect

could I have concretized?
could you have concretized?
could he have concretized?
could we have concretized?
could you have concretized?
could they have concretized?

V-ing perfect

could I have been concretizing?
could you have been concretizing?
could he have been concretizing?
could we have been concretizing?
could you have been concretizing?
could they have been concretizing?

Interro-negative form

Simple form

could I not concretize?
could you not concretize?
could he not concretize?
could we not concretize?
could you not concretize?
could they not concretize?

V-ing form

could I not be concretizing?
could you not be concretizing?
could he not be concretizing?
could we not be concretizing?
could you not be concretizing?
could they not be concretizing?

Perfect

could I not have concretized?
could you not have concretized?
could he not have concretized?
could we not have concretized?
could you not have concretized?
could they not have concretized?

V-ing perfect

could I not have been concretizing?
could you not have been concretizing?
could he not have been concretizing?
could we not have been concretizing?
could you not have been concretizing?
could they not have been concretizing?

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