English verb conjugation COULD FLUTTER

Regular verb: flutter - fluttered - fluttered

Affirmation

Simple form

I could flutter
you could flutter
he could flutter
we could flutter
you could flutter
they could flutter

V-ing form

I could be fluttering
you could be fluttering
he could be fluttering
we could be fluttering
you could be fluttering
they could be fluttering

Perfect

I could have fluttered
you could have fluttered
he could have fluttered
we could have fluttered
you could have fluttered
they could have fluttered

V-ing perfect

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

Negation

Simple form

I could not flutter
you could not flutter
he could not flutter
we could not flutter
you could not flutter
they could not flutter

V-ing form

I could not be fluttering
you could not be fluttering
he could not be fluttering
we could not be fluttering
you could not be fluttering
they could not be fluttering

Perfect

I could not have fluttered
you could not have fluttered
he could not have fluttered
we could not have fluttered
you could not have fluttered
they could not have fluttered

V-ing perfect

I could not have been fluttering
you could not have been fluttering
he could not have been fluttering
we could not have been fluttering
you could not have been fluttering
they could not have been fluttering

Interrogative form

Simple form

could I flutter?
could you flutter?
could he flutter?
could we flutter?
could you flutter?
could they flutter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not flutter?
could you not flutter?
could he not flutter?
could we not flutter?
could you not flutter?
could they not flutter?

V-ing form

could I not be fluttering?
could you not be fluttering?
could he not be fluttering?
could we not be fluttering?
could you not be fluttering?
could they not be fluttering?

Perfect

could I not have fluttered?
could you not have fluttered?
could he not have fluttered?
could we not have fluttered?
could you not have fluttered?
could they not have fluttered?

V-ing perfect

could I not have been fluttering?
could you not have been fluttering?
could he not have been fluttering?
could we not have been fluttering?
could you not have been fluttering?
could they not have been fluttering?

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