English verb conjugation COULD FROWN

Regular verb: frown - frowned - frowned

Affirmation

Simple form

I could frown
you could frown
he could frown
we could frown
you could frown
they could frown

V-ing form

I could be frowning
you could be frowning
he could be frowning
we could be frowning
you could be frowning
they could be frowning

Perfect

I could have frowned
you could have frowned
he could have frowned
we could have frowned
you could have frowned
they could have frowned

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I frown?
could you frown?
could he frown?
could we frown?
could you frown?
could they frown?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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