English verb conjugation COULD UNTWINE

Regular verb: untwine - untwined - untwined

Affirmation

Simple form

I could untwine
you could untwine
he could untwine
we could untwine
you could untwine
they could untwine

V-ing form

I could be untwining
you could be untwining
he could be untwining
we could be untwining
you could be untwining
they could be untwining

Perfect

I could have untwined
you could have untwined
he could have untwined
we could have untwined
you could have untwined
they could have untwined

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I untwine?
could you untwine?
could he untwine?
could we untwine?
could you untwine?
could they untwine?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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