English verb conjugation COULD INVALID

Regular verb: invalid - invalided - invalided

Affirmation

Simple form

I could invalid
you could invalid
she could invalid
we could invalid
you could invalid
they could invalid

V-ing form

I could be invaliding
you could be invaliding
she could be invaliding
we could be invaliding
you could be invaliding
they could be invaliding

Perfect

I could have invalided
you could have invalided
she could have invalided
we could have invalided
you could have invalided
they could have invalided

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I invalid?
could you invalid?
could she invalid?
could we invalid?
could you invalid?
could they invalid?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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