The Conjugator
English verb conjugation
COULD NAIL

Regular verb: nail - nailed - nailed

Affirmation

Simple form

V-ing form

I could nail
you could nail
she could nail
we could nail
you could nail
they could nail
I could be nailing
you could be nailing
she could be nailing
we could be nailing
you could be nailing
they could be nailing

Perfect

V-ing perfect

I could have nailed
you could have nailed
she could have nailed
we could have nailed
you could have nailed
they could have nailed
I could have been nailing
you could have been nailing
she could have been nailing
we could have been nailing
you could have been nailing
they could have been nailing

Negation

Simple form

V-ing form

I could not nail
you could not nail
she could not nail
we could not nail
you could not nail
they could not nail
I could not be nailing
you could not be nailing
she could not be nailing
we could not be nailing
you could not be nailing
they could not be nailing

Perfect

V-ing perfect

I could not have nailed
you could not have nailed
she could not have nailed
we could not have nailed
you could not have nailed
they could not have nailed
I could not have been nailing
you could not have been nailing
she could not have been nailing
we could not have been nailing
you could not have been nailing
they could not have been nailing

Interrogative form

Simple form

V-ing form

could I nail?
could you nail?
could she nail?
could we nail?
could you nail?
could they nail?
could I be nailing?
could you be nailing?
could she be nailing?
could we be nailing?
could you be nailing?
could they be nailing?

Perfect

V-ing perfect

could I have nailed?
could you have nailed?
could she have nailed?
could we have nailed?
could you have nailed?
could they have nailed?
could I have been nailing?
could you have been nailing?
could she have been nailing?
could we have been nailing?
could you have been nailing?
could they have been nailing?

Interro-negative form

Simple form

V-ing form

could I not nail?
could you not nail?
could she not nail?
could we not nail?
could you not nail?
could they not nail?
could I not be nailing?
could you not be nailing?
could she not be nailing?
could we not be nailing?
could you not be nailing?
could they not be nailing?

Perfect

V-ing perfect

could I not have nailed?
could you not have nailed?
could she not have nailed?
could we not have nailed?
could you not have nailed?
could they not have nailed?
could I not have been nailing?
could you not have been nailing?
could she not have been nailing?
could we not have been nailing?
could you not have been nailing?
could they not have been nailing?