English verb conjugation COULD GUFFAW

Regular verb: guffaw - guffawed - guffawed

Affirmation

Simple form

I could guffaw
you could guffaw
he could guffaw
we could guffaw
you could guffaw
they could guffaw

V-ing form

I could be guffawing
you could be guffawing
he could be guffawing
we could be guffawing
you could be guffawing
they could be guffawing

Perfect

I could have guffawed
you could have guffawed
he could have guffawed
we could have guffawed
you could have guffawed
they could have guffawed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I guffaw?
could you guffaw?
could he guffaw?
could we guffaw?
could you guffaw?
could they guffaw?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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