English verb conjugation COULD UNSTITCH

Regular verb: unstitch - unstitched - unstitched

Affirmation

Simple form

I could unstitch
you could unstitch
he could unstitch
we could unstitch
you could unstitch
they could unstitch

V-ing form

I could be unstitching
you could be unstitching
he could be unstitching
we could be unstitching
you could be unstitching
they could be unstitching

Perfect

I could have unstitched
you could have unstitched
he could have unstitched
we could have unstitched
you could have unstitched
they could have unstitched

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I unstitch?
could you unstitch?
could he unstitch?
could we unstitch?
could you unstitch?
could they unstitch?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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