English verb conjugation COULD INVALID

Regular verb: invalid - invalided - invalided

Affirmation

Simple form

I could invalid
you could invalid
he could invalid
we could invalid
you could invalid
they could invalid

V-ing form

I could be invaliding
you could be invaliding
he could be invaliding
we could be invaliding
you could be invaliding
they could be invaliding

Perfect

I could have invalided
you could have invalided
he 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
he 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
he 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
he 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
he 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
he 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 he invalid?
could we invalid?
could you invalid?
could they invalid?

V-ing form

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

Perfect

could I have invalided?
could you have invalided?
could he 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 he 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 he 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 he 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 he 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 he 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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