English verb conjugation COULD FLAP

Regular verb: flap - flapped - flapped

Affirmation

Simple form

I could flap
you could flap
he could flap
we could flap
you could flap
they could flap

V-ing form

I could be flapping
you could be flapping
he could be flapping
we could be flapping
you could be flapping
they could be flapping

Perfect

I could have flapped
you could have flapped
he could have flapped
we could have flapped
you could have flapped
they could have flapped

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I flap?
could you flap?
could he flap?
could we flap?
could you flap?
could they flap?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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