must lay
Verbo irregular: lay - laid- laid

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must lay
you must lay
he must lay
we must lay
you must lay
they must lay 	I must be laying
you must be laying
he must be laying
we must be laying
you must be laying
they must be laying	I must have laid
you must have laid
he must have laid
we must have laid
you must have laid
they must have laid	I must have been laying
you must have been laying
he must have been laying
we must have been laying
you must have been laying
they must have been laying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not lay
you must not lay
he must not lay
we must not lay
you must not lay
they must not lay 	I must not be laying
you must not be laying
he must not be laying
we must not be laying
you must not be laying
they must not be laying	I must not have laid
you must not have laid
he must not have laid
we must not have laid
you must not have laid
they must not have laid	I must not have been laying
you must not have been laying
he must not have been laying
we must not have been laying
you must not have been laying
they must not have been laying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I lay?
must you lay?
must he lay?
must we lay?
must you lay?
must they lay? 	must I be laying?
must you be laying?
must he be laying?
must we be laying?
must you be laying?
must they be laying? 	must I have laid?
must you have laid?
must he have laid?
must we have laid?
must you have laid?
must they have laid? 	must I have been laying?
must you have been laying?
must he have been laying?
must we have been laying?
must you have been laying?
must they have been laying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not lay?
must you not lay?
must he not lay?
must we not lay?
must you not lay?
must they not lay? 	must I not be laying?
must you not be laying?
must he not be laying?
must we not be laying?
must you not be laying?
must they not be laying? 	must I not have laid?
must you not have laid?
must he not have laid?
must we not have laid?
must you not have laid?
must they not have laid? 	must I not have been laying?
must you not have been laying?
must he not have been laying?
must we not have been laying?
must you not have been laying?
must they not have been laying?