must penalize
Regular verb: penalize - penalized- penalized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must penalize
you must penalize
he must penalize
we must penalize
you must penalize
they must penalize 	I must be penalizing
you must be penalizing
he must be penalizing
we must be penalizing
you must be penalizing
they must be penalizing	I must have penalized
you must have penalized
he must have penalized
we must have penalized
you must have penalized
they must have penalized	I must have been penalizing
you must have been penalizing
he must have been penalizing
we must have been penalizing
you must have been penalizing
they must have been penalizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not penalize
you must not penalize
he must not penalize
we must not penalize
you must not penalize
they must not penalize 	I must not be penalizing
you must not be penalizing
he must not be penalizing
we must not be penalizing
you must not be penalizing
they must not be penalizing	I must not have penalized
you must not have penalized
he must not have penalized
we must not have penalized
you must not have penalized
they must not have penalized	I must not have been penalizing
you must not have been penalizing
he must not have been penalizing
we must not have been penalizing
you must not have been penalizing
they must not have been penalizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I penalize?
must you penalize?
must he penalize?
must we penalize?
must you penalize?
must they penalize? 	must I be penalizing?
must you be penalizing?
must he be penalizing?
must we be penalizing?
must you be penalizing?
must they be penalizing? 	must I have penalized?
must you have penalized?
must he have penalized?
must we have penalized?
must you have penalized?
must they have penalized? 	must I have been penalizing?
must you have been penalizing?
must he have been penalizing?
must we have been penalizing?
must you have been penalizing?
must they have been penalizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not penalize?
must you not penalize?
must he not penalize?
must we not penalize?
must you not penalize?
must they not penalize? 	must I not be penalizing?
must you not be penalizing?
must he not be penalizing?
must we not be penalizing?
must you not be penalizing?
must they not be penalizing? 	must I not have penalized?
must you not have penalized?
must he not have penalized?
must we not have penalized?
must you not have penalized?
must they not have penalized? 	must I not have been penalizing?
must you not have been penalizing?
must he not have been penalizing?
must we not have been penalizing?
must you not have been penalizing?
must they not have been penalizing?