English verb conjugation COULD NULLIFY

Regular verb: nullify - nullified - nullified

Affirmation

Simple form

I could nullify
you could nullify
she could nullify
we could nullify
you could nullify
they could nullify

V-ing form

I could be nullifying
you could be nullifying
she could be nullifying
we could be nullifying
you could be nullifying
they could be nullifying

Perfect

I could have nullified
you could have nullified
she could have nullified
we could have nullified
you could have nullified
they could have nullified

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I nullify?
could you nullify?
could she nullify?
could we nullify?
could you nullify?
could they nullify?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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