male gender | Modal : no | may | might | can | could | shall | should | will | would | must | ought to
English verb conjugation COULD FLAP
Regular verb: flap - flapped - flapped
Affirmation
Simple form
I could flapyou could flap
she could flap
we could flap
you could flap
they could flap
V-ing form
I could be flappingyou could be flapping
she could be flapping
we could be flapping
you could be flapping
they could be flapping
Perfect
I could have flappedyou could have flapped
she could have flapped
we could have flapped
you could have flapped
they could have flapped
V-ing perfect
I could have been flappingyou could have been flapping
she 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 flapyou couldn't flap
she couldn't flap
we couldn't flap
you couldn't flap
they couldn't flap
V-ing form
I couldn't be flappingyou couldn't be flapping
she couldn't be flapping
we couldn't be flapping
you couldn't be flapping
they couldn't be flapping
Perfect
I couldn't have flappedyou couldn't have flapped
she 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 flappingyou couldn't have been flapping
she 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 she flap?
could we flap?
could you flap?
could they flap?
V-ing form
could I be flapping?could you be flapping?
could she be flapping?
could we be flapping?
could you be flapping?
could they be flapping?
Perfect
could I have flapped?could you have flapped?
could she 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 she 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 she 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 she 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 she 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 she have been flapping?
couldn't we have been flapping?
couldn't you have been flapping?
couldn't they have been flapping?