English verb conjugation COULD INTERFOLD

Regular verb: interfold - interfolded - interfolded

Affirmation

Simple form

I could interfold
you could interfold
he could interfold
we could interfold
you could interfold
they could interfold

V-ing form

I could be interfolding
you could be interfolding
he could be interfolding
we could be interfolding
you could be interfolding
they could be interfolding

Perfect

I could have interfolded
you could have interfolded
he could have interfolded
we could have interfolded
you could have interfolded
they could have interfolded

V-ing perfect

I could have been interfolding
you could have been interfolding
he could have been interfolding
we could have been interfolding
you could have been interfolding
they could have been interfolding

Negation

Simple form

I couldn't interfold
you couldn't interfold
he couldn't interfold
we couldn't interfold
you couldn't interfold
they couldn't interfold

V-ing form

I couldn't be interfolding
you couldn't be interfolding
he couldn't be interfolding
we couldn't be interfolding
you couldn't be interfolding
they couldn't be interfolding

Perfect

I couldn't have interfolded
you couldn't have interfolded
he couldn't have interfolded
we couldn't have interfolded
you couldn't have interfolded
they couldn't have interfolded

V-ing perfect

I couldn't have been interfolding
you couldn't have been interfolding
he couldn't have been interfolding
we couldn't have been interfolding
you couldn't have been interfolding
they couldn't have been interfolding

Interrogative form

Simple form

could I interfold?
could you interfold?
could he interfold?
could we interfold?
could you interfold?
could they interfold?

V-ing form

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

Perfect

could I have interfolded?
could you have interfolded?
could he have interfolded?
could we have interfolded?
could you have interfolded?
could they have interfolded?

V-ing perfect

could I have been interfolding?
could you have been interfolding?
could he have been interfolding?
could we have been interfolding?
could you have been interfolding?
could they have been interfolding?

Interro-negative form

Simple form

couldn't I interfold?
couldn't you interfold?
couldn't he interfold?
couldn't we interfold?
couldn't you interfold?
couldn't they interfold?

V-ing form

couldn't I be interfolding?
couldn't you be interfolding?
couldn't he be interfolding?
couldn't we be interfolding?
couldn't you be interfolding?
couldn't they be interfolding?

Perfect

couldn't I have interfolded?
couldn't you have interfolded?
couldn't he have interfolded?
couldn't we have interfolded?
couldn't you have interfolded?
couldn't they have interfolded?

V-ing perfect

couldn't I have been interfolding?
couldn't you have been interfolding?
couldn't he have been interfolding?
couldn't we have been interfolding?
couldn't you have been interfolding?
couldn't they have been interfolding?

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