must enlist
Verbo regular: enlist - enlisted- enlisted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must enlist
you must enlist
he must enlist
we must enlist
you must enlist
they must enlist 	I must be enlisting
you must be enlisting
he must be enlisting
we must be enlisting
you must be enlisting
they must be enlisting	I must have enlisted
you must have enlisted
he must have enlisted
we must have enlisted
you must have enlisted
they must have enlisted	I must have been enlisting
you must have been enlisting
he must have been enlisting
we must have been enlisting
you must have been enlisting
they must have been enlisting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not enlist
you must not enlist
he must not enlist
we must not enlist
you must not enlist
they must not enlist 	I must not be enlisting
you must not be enlisting
he must not be enlisting
we must not be enlisting
you must not be enlisting
they must not be enlisting	I must not have enlisted
you must not have enlisted
he must not have enlisted
we must not have enlisted
you must not have enlisted
they must not have enlisted	I must not have been enlisting
you must not have been enlisting
he must not have been enlisting
we must not have been enlisting
you must not have been enlisting
they must not have been enlisting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I enlist?
must you enlist?
must he enlist?
must we enlist?
must you enlist?
must they enlist? 	must I be enlisting?
must you be enlisting?
must he be enlisting?
must we be enlisting?
must you be enlisting?
must they be enlisting? 	must I have enlisted?
must you have enlisted?
must he have enlisted?
must we have enlisted?
must you have enlisted?
must they have enlisted? 	must I have been enlisting?
must you have been enlisting?
must he have been enlisting?
must we have been enlisting?
must you have been enlisting?
must they have been enlisting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not enlist?
must you not enlist?
must he not enlist?
must we not enlist?
must you not enlist?
must they not enlist? 	must I not be enlisting?
must you not be enlisting?
must he not be enlisting?
must we not be enlisting?
must you not be enlisting?
must they not be enlisting? 	must I not have enlisted?
must you not have enlisted?
must he not have enlisted?
must we not have enlisted?
must you not have enlisted?
must they not have enlisted? 	must I not have been enlisting?
must you not have been enlisting?
must he not have been enlisting?
must we not have been enlisting?
must you not have been enlisting?
must they not have been enlisting?