English verb conjugation COULD SKIM

Regular verb: skim - skimmed - skimmed

Affirmation

Simple form

I could skim
you could skim
he could skim
we could skim
you could skim
they could skim

V-ing form

I could be skimming
you could be skimming
he could be skimming
we could be skimming
you could be skimming
they could be skimming

Perfect

I could have skimmed
you could have skimmed
he could have skimmed
we could have skimmed
you could have skimmed
they could have skimmed

V-ing perfect

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

Negation

Simple form

I could not skim
you could not skim
he could not skim
we could not skim
you could not skim
they could not skim

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I skim?
could you skim?
could he skim?
could we skim?
could you skim?
could they skim?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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