English verb conjugation COULD BACKSTOP

Regular verb: backstop - backstoped - backstoped

Affirmation

Simple form

I could backstop
you could backstop
she could backstop
we could backstop
you could backstop
they could backstop

V-ing form

I could be backstoping
you could be backstoping
she could be backstoping
we could be backstoping
you could be backstoping
they could be backstoping

Perfect

I could have backstoped
you could have backstoped
she could have backstoped
we could have backstoped
you could have backstoped
they could have backstoped

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I backstop?
could you backstop?
could she backstop?
could we backstop?
could you backstop?
could they backstop?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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