English verb conjugation COULD CLENCH

Regular verb: clench - clenched - clenched

Affirmation

Simple form

I could clench
you could clench
he could clench
we could clench
you could clench
they could clench

V-ing form

I could be clenching
you could be clenching
he could be clenching
we could be clenching
you could be clenching
they could be clenching

Perfect

I could have clenched
you could have clenched
he could have clenched
we could have clenched
you could have clenched
they could have clenched

V-ing perfect

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

Negation

Simple form

I could not clench
you could not clench
he could not clench
we could not clench
you could not clench
they could not clench

V-ing form

I could not be clenching
you could not be clenching
he could not be clenching
we could not be clenching
you could not be clenching
they could not be clenching

Perfect

I could not have clenched
you could not have clenched
he could not have clenched
we could not have clenched
you could not have clenched
they could not have clenched

V-ing perfect

I could not have been clenching
you could not have been clenching
he could not have been clenching
we could not have been clenching
you could not have been clenching
they could not have been clenching

Interrogative form

Simple form

could I clench?
could you clench?
could he clench?
could we clench?
could you clench?
could they clench?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not clench?
could you not clench?
could he not clench?
could we not clench?
could you not clench?
could they not clench?

V-ing form

could I not be clenching?
could you not be clenching?
could he not be clenching?
could we not be clenching?
could you not be clenching?
could they not be clenching?

Perfect

could I not have clenched?
could you not have clenched?
could he not have clenched?
could we not have clenched?
could you not have clenched?
could they not have clenched?

V-ing perfect

could I not have been clenching?
could you not have been clenching?
could he not have been clenching?
could we not have been clenching?
could you not have been clenching?
could they not have been clenching?

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