English verb conjugation COULD COUNTERFEIT

Regular verb: counterfeit - counterfeited - counterfeited

Affirmation

Simple form

I could counterfeit
you could counterfeit
he could counterfeit
we could counterfeit
you could counterfeit
they could counterfeit

V-ing form

I could be counterfeiting
you could be counterfeiting
he could be counterfeiting
we could be counterfeiting
you could be counterfeiting
they could be counterfeiting

Perfect

I could have counterfeited
you could have counterfeited
he could have counterfeited
we could have counterfeited
you could have counterfeited
they could have counterfeited

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I counterfeit?
could you counterfeit?
could he counterfeit?
could we counterfeit?
could you counterfeit?
could they counterfeit?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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