English verb conjugation COULD CRYSTALLIZE

Regular verb: crystallize - crystallized - crystallized

Affirmation

Simple form

I could crystallize
you could crystallize
he could crystallize
we could crystallize
you could crystallize
they could crystallize

V-ing form

I could be crystallizing
you could be crystallizing
he could be crystallizing
we could be crystallizing
you could be crystallizing
they could be crystallizing

Perfect

I could have crystallized
you could have crystallized
he could have crystallized
we could have crystallized
you could have crystallized
they could have crystallized

V-ing perfect

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

Negation

Simple form

I could not crystallize
you could not crystallize
he could not crystallize
we could not crystallize
you could not crystallize
they could not crystallize

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I crystallize?
could you crystallize?
could he crystallize?
could we crystallize?
could you crystallize?
could they crystallize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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