English verb conjugation COULD FLAIL

Regular verb: flail - flailed - flailed

Affirmation

Simple form

I could flail
you could flail
he could flail
we could flail
you could flail
they could flail

V-ing form

I could be flailing
you could be flailing
he could be flailing
we could be flailing
you could be flailing
they could be flailing

Perfect

I could have flailed
you could have flailed
he could have flailed
we could have flailed
you could have flailed
they could have flailed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I flail?
could you flail?
could he flail?
could we flail?
could you flail?
could they flail?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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