English verb conjugation COULD FRET

Regular verb: fret - fretted - fretted

Affirmation

Simple form

I could fret
you could fret
she could fret
we could fret
you could fret
they could fret

V-ing form

I could be fretting
you could be fretting
she could be fretting
we could be fretting
you could be fretting
they could be fretting

Perfect

I could have fretted
you could have fretted
she 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
she could have been fretting
we could have been fretting
you could have been fretting
they could have been fretting

Negation

Simple form

I couldn't fret
you couldn't fret
she couldn't fret
we couldn't fret
you couldn't fret
they couldn't fret

V-ing form

I couldn't be fretting
you couldn't be fretting
she couldn't be fretting
we couldn't be fretting
you couldn't be fretting
they couldn't be fretting

Perfect

I couldn't have fretted
you couldn't have fretted
she couldn't have fretted
we couldn't have fretted
you couldn't have fretted
they couldn't have fretted

V-ing perfect

I couldn't have been fretting
you couldn't have been fretting
she couldn't have been fretting
we couldn't have been fretting
you couldn't have been fretting
they couldn't have been fretting

Interrogative form

Simple form

could I fret?
could you fret?
could she fret?
could we fret?
could you fret?
could they fret?

V-ing form

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

Perfect

could I have fretted?
could you have fretted?
could she 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 she have been fretting?
could we have been fretting?
could you have been fretting?
could they have been fretting?

Interro-negative form

Simple form

couldn't I fret?
couldn't you fret?
couldn't she fret?
couldn't we fret?
couldn't you fret?
couldn't they fret?

V-ing form

couldn't I be fretting?
couldn't you be fretting?
couldn't she be fretting?
couldn't we be fretting?
couldn't you be fretting?
couldn't they be fretting?

Perfect

couldn't I have fretted?
couldn't you have fretted?
couldn't she have fretted?
couldn't we have fretted?
couldn't you have fretted?
couldn't they have fretted?

V-ing perfect

couldn't I have been fretting?
couldn't you have been fretting?
couldn't she have been fretting?
couldn't we have been fretting?
couldn't you have been fretting?
couldn't they have been fretting?

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