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 couldn't mistake
you couldn't mistake
he couldn't mistake
we couldn't mistake
you couldn't mistake
they couldn't mistake

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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