English verb conjugation COULD INTERCHANGE

Regular verb: interchange - interchanged - interchanged

Affirmation

Simple form

I could interchange
you could interchange
she could interchange
we could interchange
you could interchange
they could interchange

V-ing form

I could be interchanging
you could be interchanging
she could be interchanging
we could be interchanging
you could be interchanging
they could be interchanging

Perfect

I could have interchanged
you could have interchanged
she could have interchanged
we could have interchanged
you could have interchanged
they could have interchanged

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I interchange?
could you interchange?
could she interchange?
could we interchange?
could you interchange?
could they interchange?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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