English verb conjugation COULD FRET

Regular verb: fret - fretted - fretted

Affirmation

Simple form

I could fret
you could fret
he could fret
we could fret
you could fret
they could fret

V-ing form

I could be fretting
you could be fretting
he could be fretting
we could be fretting
you could be fretting
they could be fretting

Perfect

I could have fretted
you could have fretted
he could have fretted
we could have fretted
you could have fretted
they could have fretted

V-ing perfect

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

Negation

Simple form

I could not fret
you could not fret
he could not fret
we could not fret
you could not fret
they could not fret

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I fret?
could you fret?
could he fret?
could we fret?
could you fret?
could they fret?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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