English verb conjugation COULD REFASTEN

Regular verb: refasten - refastened - refastened

Affirmation

Simple form

I could refasten
you could refasten
he could refasten
we could refasten
you could refasten
they could refasten

V-ing form

I could be refastening
you could be refastening
he could be refastening
we could be refastening
you could be refastening
they could be refastening

Perfect

I could have refastened
you could have refastened
he could have refastened
we could have refastened
you could have refastened
they could have refastened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I refasten?
could you refasten?
could he refasten?
could we refasten?
could you refasten?
could they refasten?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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