English verb conjugation COULD DOUBLE-BILL

Regular verb: double-bill - double-billed - double-billed

Affirmation

Simple form

I could double-bill
you could double-bill
he could double-bill
we could double-bill
you could double-bill
they could double-bill

V-ing form

I could be double-billing
you could be double-billing
he could be double-billing
we could be double-billing
you could be double-billing
they could be double-billing

Perfect

I could have double-billed
you could have double-billed
he could have double-billed
we could have double-billed
you could have double-billed
they could have double-billed

V-ing perfect

I could have been double-billing
you could have been double-billing
he could have been double-billing
we could have been double-billing
you could have been double-billing
they could have been double-billing

Negation

Simple form

I couldn't double-bill
you couldn't double-bill
he couldn't double-bill
we couldn't double-bill
you couldn't double-bill
they couldn't double-bill

V-ing form

I couldn't be double-billing
you couldn't be double-billing
he couldn't be double-billing
we couldn't be double-billing
you couldn't be double-billing
they couldn't be double-billing

Perfect

I couldn't have double-billed
you couldn't have double-billed
he couldn't have double-billed
we couldn't have double-billed
you couldn't have double-billed
they couldn't have double-billed

V-ing perfect

I couldn't have been double-billing
you couldn't have been double-billing
he couldn't have been double-billing
we couldn't have been double-billing
you couldn't have been double-billing
they couldn't have been double-billing

Interrogative form

Simple form

could I double-bill?
could you double-bill?
could he double-bill?
could we double-bill?
could you double-bill?
could they double-bill?

V-ing form

could I be double-billing?
could you be double-billing?
could he be double-billing?
could we be double-billing?
could you be double-billing?
could they be double-billing?

Perfect

could I have double-billed?
could you have double-billed?
could he have double-billed?
could we have double-billed?
could you have double-billed?
could they have double-billed?

V-ing perfect

could I have been double-billing?
could you have been double-billing?
could he have been double-billing?
could we have been double-billing?
could you have been double-billing?
could they have been double-billing?

Interro-negative form

Simple form

couldn't I double-bill?
couldn't you double-bill?
couldn't he double-bill?
couldn't we double-bill?
couldn't you double-bill?
couldn't they double-bill?

V-ing form

couldn't I be double-billing?
couldn't you be double-billing?
couldn't he be double-billing?
couldn't we be double-billing?
couldn't you be double-billing?
couldn't they be double-billing?

Perfect

couldn't I have double-billed?
couldn't you have double-billed?
couldn't he have double-billed?
couldn't we have double-billed?
couldn't you have double-billed?
couldn't they have double-billed?

V-ing perfect

couldn't I have been double-billing?
couldn't you have been double-billing?
couldn't he have been double-billing?
couldn't we have been double-billing?
couldn't you have been double-billing?
couldn't they have been double-billing?

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