English verb conjugation COULD BURR

Regular verb: burr - burred - burred

Affirmation

Simple form

I could burr
you could burr
he could burr
we could burr
you could burr
they could burr

V-ing form

I could be burring
you could be burring
he could be burring
we could be burring
you could be burring
they could be burring

Perfect

I could have burred
you could have burred
he could have burred
we could have burred
you could have burred
they could have burred

V-ing perfect

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

Negation

Simple form

I couldn't burr
you couldn't burr
he couldn't burr
we couldn't burr
you couldn't burr
they couldn't burr

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I burr?
could you burr?
could he burr?
could we burr?
could you burr?
could they burr?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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