English verb conjugation COULD REGISTER

Regular verb: register - registered - registered

Affirmation

Simple form

I could register
you could register
he could register
we could register
you could register
they could register

V-ing form

I could be registering
you could be registering
he could be registering
we could be registering
you could be registering
they could be registering

Perfect

I could have registered
you could have registered
he could have registered
we could have registered
you could have registered
they could have registered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I register?
could you register?
could he register?
could we register?
could you register?
could they register?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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