English verb conjugation COULD MISTAKE

Irregular verb: mistake - mistook - mistaken

Affirmation

Simple form

I could mistake
you could mistake
he could mistake
we could mistake
you could mistake
they could mistake

V-ing form

I could be mistaking
you could be mistaking
he could be mistaking
we could be mistaking
you could be mistaking
they could be mistaking

Perfect

I could have mistaken
you could have mistaken
he could have mistaken
we could have mistaken
you could have mistaken
they could have mistaken

V-ing perfect

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

Negation

Simple form

I could not mistake
you could not mistake
he could not mistake
we could not mistake
you could not mistake
they could not mistake

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I mistake?
could you mistake?
could he mistake?
could we mistake?
could you mistake?
could they mistake?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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