English verb conjugation COULD CLERK

Regular verb: clerk - clerked - clerked

Affirmation

Simple form

I could clerk
you could clerk
he could clerk
we could clerk
you could clerk
they could clerk

V-ing form

I could be clerking
you could be clerking
he could be clerking
we could be clerking
you could be clerking
they could be clerking

Perfect

I could have clerked
you could have clerked
he could have clerked
we could have clerked
you could have clerked
they could have clerked

V-ing perfect

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

Negation

Simple form

I could not clerk
you could not clerk
he could not clerk
we could not clerk
you could not clerk
they could not clerk

V-ing form

I could not be clerking
you could not be clerking
he could not be clerking
we could not be clerking
you could not be clerking
they could not be clerking

Perfect

I could not have clerked
you could not have clerked
he could not have clerked
we could not have clerked
you could not have clerked
they could not have clerked

V-ing perfect

I could not have been clerking
you could not have been clerking
he could not have been clerking
we could not have been clerking
you could not have been clerking
they could not have been clerking

Interrogative form

Simple form

could I clerk?
could you clerk?
could he clerk?
could we clerk?
could you clerk?
could they clerk?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not clerk?
could you not clerk?
could he not clerk?
could we not clerk?
could you not clerk?
could they not clerk?

V-ing form

could I not be clerking?
could you not be clerking?
could he not be clerking?
could we not be clerking?
could you not be clerking?
could they not be clerking?

Perfect

could I not have clerked?
could you not have clerked?
could he not have clerked?
could we not have clerked?
could you not have clerked?
could they not have clerked?

V-ing perfect

could I not have been clerking?
could you not have been clerking?
could he not have been clerking?
could we not have been clerking?
could you not have been clerking?
could they not have been clerking?

Page top