English verb conjugation COULD BURP

Regular verb: burp - burped - burped

Affirmation

Simple form

I could burp
you could burp
he could burp
we could burp
you could burp
they could burp

V-ing form

I could be burping
you could be burping
he could be burping
we could be burping
you could be burping
they could be burping

Perfect

I could have burped
you could have burped
he could have burped
we could have burped
you could have burped
they could have burped

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I burp?
could you burp?
could he burp?
could we burp?
could you burp?
could they burp?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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