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male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to

English verb conjugation COULD REGISTER

Regular verb: register - registered - registered


Affirmation

Simple form
I could register
you could register
she could register
we could register
you could register
they could register
V-ing form
I could be registering
you could be registering
she could be registering
we could be registering
you could be registering
they could be registering
Perfect
I could have registered
you could have registered
she 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
she 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
she 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
she 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
she 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
she 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 she register?
could we register?
could you register?
could they register?
V-ing form
could I be registering?
could you be registering?
could she be registering?
could we be registering?
could you be registering?
could they be registering?
Perfect
could I have registered?
could you have registered?
could she 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 she 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 she 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 she 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 she 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 she have been registering?
couldn't we have been registering?
couldn't you have been registering?
couldn't they have been registering?