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 couldn't skim
you couldn't skim
he couldn't skim
we couldn't skim
you couldn't skim
they couldn't skim

V-ing form

I couldn't be skimming
you couldn't be skimming
he couldn't be skimming
we couldn't be skimming
you couldn't be skimming
they couldn't be skimming

Perfect

I couldn't have skimmed
you couldn't have skimmed
he couldn't have skimmed
we couldn't have skimmed
you couldn't have skimmed
they couldn't have skimmed

V-ing perfect

I couldn't have been skimming
you couldn't have been skimming
he couldn't have been skimming
we couldn't have been skimming
you couldn't have been skimming
they couldn't 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

couldn't I skim?
couldn't you skim?
couldn't he skim?
couldn't we skim?
couldn't you skim?
couldn't they skim?

V-ing form

couldn't I be skimming?
couldn't you be skimming?
couldn't he be skimming?
couldn't we be skimming?
couldn't you be skimming?
couldn't they be skimming?

Perfect

couldn't I have skimmed?
couldn't you have skimmed?
couldn't he have skimmed?
couldn't we have skimmed?
couldn't you have skimmed?
couldn't they have skimmed?

V-ing perfect

couldn't I have been skimming?
couldn't you have been skimming?
couldn't he have been skimming?
couldn't we have been skimming?
couldn't you have been skimming?
couldn't they have been skimming?

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