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 couldn't flutter
you couldn't flutter
he couldn't flutter
we couldn't flutter
you couldn't flutter
they couldn't flutter

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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