English verb conjugation COULD WHIRR

Regular verb: whirr - whirred - whirred

Affirmation

Simple form

I could whirr
you could whirr
he could whirr
we could whirr
you could whirr
they could whirr

V-ing form

I could be whirring
you could be whirring
he could be whirring
we could be whirring
you could be whirring
they could be whirring

Perfect

I could have whirred
you could have whirred
he could have whirred
we could have whirred
you could have whirred
they could have whirred

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I whirr?
could you whirr?
could he whirr?
could we whirr?
could you whirr?
could they whirr?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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