must undercharge
Verbo regular: undercharge - undercharged- undercharged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must undercharge
you must undercharge
he must undercharge
we must undercharge
you must undercharge
they must undercharge 	I must be undercharging
you must be undercharging
he must be undercharging
we must be undercharging
you must be undercharging
they must be undercharging	I must have undercharged
you must have undercharged
he must have undercharged
we must have undercharged
you must have undercharged
they must have undercharged	I must have been undercharging
you must have been undercharging
he must have been undercharging
we must have been undercharging
you must have been undercharging
they must have been undercharging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not undercharge
you must not undercharge
he must not undercharge
we must not undercharge
you must not undercharge
they must not undercharge 	I must not be undercharging
you must not be undercharging
he must not be undercharging
we must not be undercharging
you must not be undercharging
they must not be undercharging	I must not have undercharged
you must not have undercharged
he must not have undercharged
we must not have undercharged
you must not have undercharged
they must not have undercharged	I must not have been undercharging
you must not have been undercharging
he must not have been undercharging
we must not have been undercharging
you must not have been undercharging
they must not have been undercharging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I undercharge?
must you undercharge?
must he undercharge?
must we undercharge?
must you undercharge?
must they undercharge? 	must I be undercharging?
must you be undercharging?
must he be undercharging?
must we be undercharging?
must you be undercharging?
must they be undercharging? 	must I have undercharged?
must you have undercharged?
must he have undercharged?
must we have undercharged?
must you have undercharged?
must they have undercharged? 	must I have been undercharging?
must you have been undercharging?
must he have been undercharging?
must we have been undercharging?
must you have been undercharging?
must they have been undercharging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not undercharge?
must you not undercharge?
must he not undercharge?
must we not undercharge?
must you not undercharge?
must they not undercharge? 	must I not be undercharging?
must you not be undercharging?
must he not be undercharging?
must we not be undercharging?
must you not be undercharging?
must they not be undercharging? 	must I not have undercharged?
must you not have undercharged?
must he not have undercharged?
must we not have undercharged?
must you not have undercharged?
must they not have undercharged? 	must I not have been undercharging?
must you not have been undercharging?
must he not have been undercharging?
must we not have been undercharging?
must you not have been undercharging?
must they not have been undercharging?