English verb conjugation COULD HUFF

Regular verb: huff - huffed - huffed

Affirmation

Simple form

I could huff
you could huff
he could huff
we could huff
you could huff
they could huff

V-ing form

I could be huffing
you could be huffing
he could be huffing
we could be huffing
you could be huffing
they could be huffing

Perfect

I could have huffed
you could have huffed
he could have huffed
we could have huffed
you could have huffed
they could have huffed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I huff?
could you huff?
could he huff?
could we huff?
could you huff?
could they huff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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