English verb conjugation COULD PREFERTILIZE

Regular verb: prefertilize - prefertilized - prefertilized

Affirmation

Simple form

I could prefertilize
you could prefertilize
she could prefertilize
we could prefertilize
you could prefertilize
they could prefertilize

V-ing form

I could be prefertilizing
you could be prefertilizing
she could be prefertilizing
we could be prefertilizing
you could be prefertilizing
they could be prefertilizing

Perfect

I could have prefertilized
you could have prefertilized
she could have prefertilized
we could have prefertilized
you could have prefertilized
they could have prefertilized

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I prefertilize?
could you prefertilize?
could she prefertilize?
could we prefertilize?
could you prefertilize?
could they prefertilize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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