must lam
Verbo regular: lam - lammed- lammed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must lam
you must lam
he must lam
we must lam
you must lam
they must lam 	I must be lamming
you must be lamming
he must be lamming
we must be lamming
you must be lamming
they must be lamming	I must have lammed
you must have lammed
he must have lammed
we must have lammed
you must have lammed
they must have lammed	I must have been lamming
you must have been lamming
he must have been lamming
we must have been lamming
you must have been lamming
they must have been lamming	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't lam
you mustn't lam
he mustn't lam
we mustn't lam
you mustn't lam
they mustn't lam 	I mustn't be lamming
you mustn't be lamming
he mustn't be lamming
we mustn't be lamming
you mustn't be lamming
they mustn't be lamming	I mustn't have lammed
you mustn't have lammed
he mustn't have lammed
we mustn't have lammed
you mustn't have lammed
they mustn't have lammed	I mustn't have been lamming
you mustn't have been lamming
he mustn't have been lamming
we mustn't have been lamming
you mustn't have been lamming
they mustn't have been lamming	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I lam?
must you lam?
must he lam?
must we lam?
must you lam?
must they lam? 	must I be lamming?
must you be lamming?
must he be lamming?
must we be lamming?
must you be lamming?
must they be lamming? 	must I have lammed?
must you have lammed?
must he have lammed?
must we have lammed?
must you have lammed?
must they have lammed? 	must I have been lamming?
must you have been lamming?
must he have been lamming?
must we have been lamming?
must you have been lamming?
must they have been lamming? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I lam?
mustn't you lam?
mustn't he lam?
mustn't we lam?
mustn't you lam?
mustn't they lam? 	mustn't I be lamming?
mustn't you be lamming?
mustn't he be lamming?
mustn't we be lamming?
mustn't you be lamming?
mustn't they be lamming? 	mustn't I have lammed?
mustn't you have lammed?
mustn't he have lammed?
mustn't we have lammed?
mustn't you have lammed?
mustn't they have lammed? 	mustn't I have been lamming?
mustn't you have been lamming?
mustn't he have been lamming?
mustn't we have been lamming?
mustn't you have been lamming?
mustn't they have been lamming?