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

English verb conjugation COULD LOCK

Regular verb: lock - locked - locked


Affirmation

Simple form
I could lock
you could lock
he could lock
we could lock
you could lock
they could lock
V-ing form
I could be locking
you could be locking
he could be locking
we could be locking
you could be locking
they could be locking
Perfect
I could have locked
you could have locked
he could have locked
we could have locked
you could have locked
they could have locked
V-ing perfect
I could have been locking
you could have been locking
he could have been locking
we could have been locking
you could have been locking
they could have been locking

Negation

Simple form
I could not lock
you could not lock
he could not lock
we could not lock
you could not lock
they could not lock
V-ing form
I could not be locking
you could not be locking
he could not be locking
we could not be locking
you could not be locking
they could not be locking
Perfect
I could not have locked
you could not have locked
he could not have locked
we could not have locked
you could not have locked
they could not have locked
V-ing perfect
I could not have been locking
you could not have been locking
he could not have been locking
we could not have been locking
you could not have been locking
they could not have been locking

Interrogative form

Simple form
could I lock?
could you lock?
could he lock?
could we lock?
could you lock?
could they lock?
V-ing form
could I be locking?
could you be locking?
could he be locking?
could we be locking?
could you be locking?
could they be locking?
Perfect
could I have locked?
could you have locked?
could he have locked?
could we have locked?
could you have locked?
could they have locked?
V-ing perfect
could I have been locking?
could you have been locking?
could he have been locking?
could we have been locking?
could you have been locking?
could they have been locking?

Interro-negative form

Simple form
could I not lock?
could you not lock?
could he not lock?
could we not lock?
could you not lock?
could they not lock?
V-ing form
could I not be locking?
could you not be locking?
could he not be locking?
could we not be locking?
could you not be locking?
could they not be locking?
Perfect
could I not have locked?
could you not have locked?
could he not have locked?
could we not have locked?
could you not have locked?
could they not have locked?
V-ing perfect
could I not have been locking?
could you not have been locking?
could he not have been locking?
could we not have been locking?
could you not have been locking?
could they not have been locking?