English verb conjugation COULD CRYSTALLIZE

Regular verb: crystallize - crystallized - crystallized

Affirmation

Simple form

I could crystallize
you could crystallize
she could crystallize
we could crystallize
you could crystallize
they could crystallize

V-ing form

I could be crystallizing
you could be crystallizing
she could be crystallizing
we could be crystallizing
you could be crystallizing
they could be crystallizing

Perfect

I could have crystallized
you could have crystallized
she 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
she could have been crystallizing
we could have been crystallizing
you could have been crystallizing
they could have been crystallizing

Negation

Simple form

I couldn't crystallize
you couldn't crystallize
she couldn't crystallize
we couldn't crystallize
you couldn't crystallize
they couldn't crystallize

V-ing form

I couldn't be crystallizing
you couldn't be crystallizing
she couldn't be crystallizing
we couldn't be crystallizing
you couldn't be crystallizing
they couldn't be crystallizing

Perfect

I couldn't have crystallized
you couldn't have crystallized
she couldn't have crystallized
we couldn't have crystallized
you couldn't have crystallized
they couldn't have crystallized

V-ing perfect

I couldn't have been crystallizing
you couldn't have been crystallizing
she couldn't have been crystallizing
we couldn't have been crystallizing
you couldn't have been crystallizing
they couldn't have been crystallizing

Interrogative form

Simple form

could I crystallize?
could you crystallize?
could she crystallize?
could we crystallize?
could you crystallize?
could they crystallize?

V-ing form

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

Perfect

could I have crystallized?
could you have crystallized?
could she 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 she have been crystallizing?
could we have been crystallizing?
could you have been crystallizing?
could they have been crystallizing?

Interro-negative form

Simple form

couldn't I crystallize?
couldn't you crystallize?
couldn't she crystallize?
couldn't we crystallize?
couldn't you crystallize?
couldn't they crystallize?

V-ing form

couldn't I be crystallizing?
couldn't you be crystallizing?
couldn't she be crystallizing?
couldn't we be crystallizing?
couldn't you be crystallizing?
couldn't they be crystallizing?

Perfect

couldn't I have crystallized?
couldn't you have crystallized?
couldn't she have crystallized?
couldn't we have crystallized?
couldn't you have crystallized?
couldn't they have crystallized?

V-ing perfect

couldn't I have been crystallizing?
couldn't you have been crystallizing?
couldn't she have been crystallizing?
couldn't we have been crystallizing?
couldn't you have been crystallizing?
couldn't they have been crystallizing?

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