English verb conjugation COULD BIRCH

Regular verb: birch - birched - birched

Affirmation

Simple form

I could birch
you could birch
he could birch
we could birch
you could birch
they could birch

V-ing form

I could be birching
you could be birching
he could be birching
we could be birching
you could be birching
they could be birching

Perfect

I could have birched
you could have birched
he could have birched
we could have birched
you could have birched
they could have birched

V-ing perfect

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

Negation

Simple form

I could not birch
you could not birch
he could not birch
we could not birch
you could not birch
they could not birch

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I birch?
could you birch?
could he birch?
could we birch?
could you birch?
could they birch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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