English verb conjugation COULD PROLIFERATE

Regular verb: proliferate - proliferated - proliferated

Affirmation

Simple form

I could proliferate
you could proliferate
she could proliferate
we could proliferate
you could proliferate
they could proliferate

V-ing form

I could be proliferating
you could be proliferating
she could be proliferating
we could be proliferating
you could be proliferating
they could be proliferating

Perfect

I could have proliferated
you could have proliferated
she could have proliferated
we could have proliferated
you could have proliferated
they could have proliferated

V-ing perfect

I could have been proliferating
you could have been proliferating
she could have been proliferating
we could have been proliferating
you could have been proliferating
they could have been proliferating

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I proliferate?
could you proliferate?
could she proliferate?
could we proliferate?
could you proliferate?
could they proliferate?

V-ing form

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

Perfect

could I have proliferated?
could you have proliferated?
could she have proliferated?
could we have proliferated?
could you have proliferated?
could they have proliferated?

V-ing perfect

could I have been proliferating?
could you have been proliferating?
could she have been proliferating?
could we have been proliferating?
could you have been proliferating?
could they have been proliferating?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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