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 mustn't lug
you mustn't lug
he mustn't lug
we mustn't lug
you mustn't lug
they mustn't lug 	I mustn't be lugging
you mustn't be lugging
he mustn't be lugging
we mustn't be lugging
you mustn't be lugging
they mustn't be lugging	I mustn't have lugged
you mustn't have lugged
he mustn't have lugged
we mustn't have lugged
you mustn't have lugged
they mustn't have lugged	I mustn't have been lugging
you mustn't have been lugging
he mustn't have been lugging
we mustn't have been lugging
you mustn't have been lugging
they mustn't 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 	
mustn't I lug?
mustn't you lug?
mustn't he lug?
mustn't we lug?
mustn't you lug?
mustn't they lug? 	mustn't I be lugging?
mustn't you be lugging?
mustn't he be lugging?
mustn't we be lugging?
mustn't you be lugging?
mustn't they be lugging? 	mustn't I have lugged?
mustn't you have lugged?
mustn't he have lugged?
mustn't we have lugged?
mustn't you have lugged?
mustn't they have lugged? 	mustn't I have been lugging?
mustn't you have been lugging?
mustn't he have been lugging?
mustn't we have been lugging?
mustn't you have been lugging?
mustn't they have been lugging?