English verb conjugation COULD WHIFF

Regular verb: whiff - whiffed - whiffed

Affirmation

Simple form

I could whiff
you could whiff
he could whiff
we could whiff
you could whiff
they could whiff

V-ing form

I could be whiffing
you could be whiffing
he could be whiffing
we could be whiffing
you could be whiffing
they could be whiffing

Perfect

I could have whiffed
you could have whiffed
he could have whiffed
we could have whiffed
you could have whiffed
they could have whiffed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I whiff?
could you whiff?
could he whiff?
could we whiff?
could you whiff?
could they whiff?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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