English verb conjugation CAN FRET

Regular verb: fret - fretted - fretted

Affirmation

Simple form

I can fret
you can fret
he can fret
we can fret
you can fret
they can fret

V-ing form

I can be fretting
you can be fretting
he can be fretting
we can be fretting
you can be fretting
they can be fretting

Perfect

I can have fretted
you can have fretted
he can have fretted
we can have fretted
you can have fretted
they can have fretted

V-ing perfect

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

Negation

Simple form

I can't fret
you can't fret
he can't fret
we can't fret
you can't fret
they can't fret

V-ing form

I can't be fretting
you can't be fretting
he can't be fretting
we can't be fretting
you can't be fretting
they can't be fretting

Perfect

I can't have fretted
you can't have fretted
he can't have fretted
we can't have fretted
you can't have fretted
they can't have fretted

V-ing perfect

I can't have been fretting
you can't have been fretting
he can't have been fretting
we can't have been fretting
you can't have been fretting
they can't have been fretting

Interrogative form

Simple form

can I fret?
can you fret?
can he fret?
can we fret?
can you fret?
can they fret?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

can't I fret?
can't you fret?
can't he fret?
can't we fret?
can't you fret?
can't they fret?

V-ing form

can't I be fretting?
can't you be fretting?
can't he be fretting?
can't we be fretting?
can't you be fretting?
can't they be fretting?

Perfect

can't I have fretted?
can't you have fretted?
can't he have fretted?
can't we have fretted?
can't you have fretted?
can't they have fretted?

V-ing perfect

can't I have been fretting?
can't you have been fretting?
can't he have been fretting?
can't we have been fretting?
can't you have been fretting?
can't they have been fretting?

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