English verb conjugation MUST RETRAIN

Regular verb: retrain - retrained - retrained

Affirmation

Simple form

I must retrain
you must retrain
he must retrain
we must retrain
you must retrain
they must retrain

V-ing form

I must be retraining
you must be retraining
he must be retraining
we must be retraining
you must be retraining
they must be retraining

Perfect

I must have retrained
you must have retrained
he must have retrained
we must have retrained
you must have retrained
they must have retrained

V-ing perfect

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

Negation

Simple form

I must not retrain
you must not retrain
he must not retrain
we must not retrain
you must not retrain
they must not retrain

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I retrain?
must you retrain?
must he retrain?
must we retrain?
must you retrain?
must they retrain?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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