English verb conjugation COULD MARK MARK

Regular verb: mark mark - mark marked - mark marked

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form

I could mark mark
you could mark mark
she could mark mark
we could mark mark
you could mark mark
they could mark mark

V-ing form

I could be mark marking
you could be mark marking
she could be mark marking
we could be mark marking
you could be mark marking
they could be mark marking

Perfect

I could have mark marked
you could have mark marked
she could have mark marked
we could have mark marked
you could have mark marked
they could have mark marked

V-ing perfect

I could have been mark marking
you could have been mark marking
she could have been mark marking
we could have been mark marking
you could have been mark marking
they could have been mark marking

Negation

Simple form

I could not mark mark
you could not mark mark
she could not mark mark
we could not mark mark
you could not mark mark
they could not mark mark

V-ing form

I could not be mark marking
you could not be mark marking
she could not be mark marking
we could not be mark marking
you could not be mark marking
they could not be mark marking

Perfect

I could not have mark marked
you could not have mark marked
she could not have mark marked
we could not have mark marked
you could not have mark marked
they could not have mark marked

V-ing perfect

I could not have been mark marking
you could not have been mark marking
she could not have been mark marking
we could not have been mark marking
you could not have been mark marking
they could not have been mark marking

Interrogative form

Simple form

could I mark mark?
could you mark mark?
could she mark mark?
could we mark mark?
could you mark mark?
could they mark mark?

V-ing form

could I be mark marking?
could you be mark marking?
could she be mark marking?
could we be mark marking?
could you be mark marking?
could they be mark marking?

Perfect

could I have mark marked?
could you have mark marked?
could she have mark marked?
could we have mark marked?
could you have mark marked?
could they have mark marked?

V-ing perfect

could I have been mark marking?
could you have been mark marking?
could she have been mark marking?
could we have been mark marking?
could you have been mark marking?
could they have been mark marking?

Interro-negative form

Simple form

could I not mark mark?
could you not mark mark?
could she not mark mark?
could we not mark mark?
could you not mark mark?
could they not mark mark?

V-ing form

could I not be mark marking?
could you not be mark marking?
could she not be mark marking?
could we not be mark marking?
could you not be mark marking?
could they not be mark marking?

Perfect

could I not have mark marked?
could you not have mark marked?
could she not have mark marked?
could we not have mark marked?
could you not have mark marked?
could they not have mark marked?

V-ing perfect

could I not have been mark marking?
could you not have been mark marking?
could she not have been mark marking?
could we not have been mark marking?
could you not have been mark marking?
could they not have been mark marking?

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