must lug
Verbo regular: lug - lugged- lugged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must lug
you must lug
he must lug
we must lug
you must lug
they must lug 	I must be lugging
you must be lugging
he must be lugging
we must be lugging
you must be lugging
they must be lugging	I must have lugged
you must have lugged
he must have lugged
we must have lugged
you must have lugged
they must have lugged	I must have been lugging
you must have been lugging
he must have been lugging
we must have been lugging
you must have been lugging
they must have been lugging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not lug
you must not lug
he must not lug
we must not lug
you must not lug
they must not lug 	I must not be lugging
you must not be lugging
he must not be lugging
we must not be lugging
you must not be lugging
they must not be lugging	I must not have lugged
you must not have lugged
he must not have lugged
we must not have lugged
you must not have lugged
they must not have lugged	I must not have been lugging
you must not have been lugging
he must not have been lugging
we must not have been lugging
you must not have been lugging
they must not have been lugging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I lug?
must you lug?
must he lug?
must we lug?
must you lug?
must they lug? 	must I be lugging?
must you be lugging?
must he be lugging?
must we be lugging?
must you be lugging?
must they be lugging? 	must I have lugged?
must you have lugged?
must he have lugged?
must we have lugged?
must you have lugged?
must they have lugged? 	must I have been lugging?
must you have been lugging?
must he have been lugging?
must we have been lugging?
must you have been lugging?
must they have been lugging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not lug?
must you not lug?
must he not lug?
must we not lug?
must you not lug?
must they not lug? 	must I not be lugging?
must you not be lugging?
must he not be lugging?
must we not be lugging?
must you not be lugging?
must they not be lugging? 	must I not have lugged?
must you not have lugged?
must he not have lugged?
must we not have lugged?
must you not have lugged?
must they not have lugged? 	must I not have been lugging?
must you not have been lugging?
must he not have been lugging?
must we not have been lugging?
must you not have been lugging?
must they not have been lugging?