English verb conjugation COULD SKIRR

Regular verb: skirr - skirred - skirred

Affirmation

Simple form

I could skirr
you could skirr
he could skirr
we could skirr
you could skirr
they could skirr

V-ing form

I could be skirring
you could be skirring
he could be skirring
we could be skirring
you could be skirring
they could be skirring

Perfect

I could have skirred
you could have skirred
he could have skirred
we could have skirred
you could have skirred
they could have skirred

V-ing perfect

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

Negation

Simple form

I could not skirr
you could not skirr
he could not skirr
we could not skirr
you could not skirr
they could not skirr

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I skirr?
could you skirr?
could he skirr?
could we skirr?
could you skirr?
could they skirr?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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