English verb conjugation COULD BREATHE

Regular verb: breathe - breathed - breathed

Affirmation

Simple form

I could breathe
you could breathe
he could breathe
we could breathe
you could breathe
they could breathe

V-ing form

I could be breathing
you could be breathing
he could be breathing
we could be breathing
you could be breathing
they could be breathing

Perfect

I could have breathed
you could have breathed
he could have breathed
we could have breathed
you could have breathed
they could have breathed

V-ing perfect

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

Negation

Simple form

I could not breathe
you could not breathe
he could not breathe
we could not breathe
you could not breathe
they could not breathe

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I breathe?
could you breathe?
could he breathe?
could we breathe?
could you breathe?
could they breathe?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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