English verb conjugation COULD RETRAIN

Regular verb: retrain - retrained - retrained

Affirmation

Simple form

I could retrain
you could retrain
he could retrain
we could retrain
you could retrain
they could retrain

V-ing form

I could be retraining
you could be retraining
he could be retraining
we could be retraining
you could be retraining
they could be retraining

Perfect

I could have retrained
you could have retrained
he could have retrained
we could have retrained
you could have retrained
they could have retrained

V-ing perfect

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

Negation

Simple form

I could not retrain
you could not retrain
he could not retrain
we could not retrain
you could not retrain
they could not retrain

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I retrain?
could you retrain?
could he retrain?
could we retrain?
could you retrain?
could they retrain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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