must issue
Verbo regular: issue - issued- issued

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must issue
you must issue
he must issue
we must issue
you must issue
they must issue 	I must be issuing
you must be issuing
he must be issuing
we must be issuing
you must be issuing
they must be issuing	I must have issued
you must have issued
he must have issued
we must have issued
you must have issued
they must have issued	I must have been issuing
you must have been issuing
he must have been issuing
we must have been issuing
you must have been issuing
they must have been issuing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not issue
you must not issue
he must not issue
we must not issue
you must not issue
they must not issue 	I must not be issuing
you must not be issuing
he must not be issuing
we must not be issuing
you must not be issuing
they must not be issuing	I must not have issued
you must not have issued
he must not have issued
we must not have issued
you must not have issued
they must not have issued	I must not have been issuing
you must not have been issuing
he must not have been issuing
we must not have been issuing
you must not have been issuing
they must not have been issuing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I issue?
must you issue?
must he issue?
must we issue?
must you issue?
must they issue? 	must I be issuing?
must you be issuing?
must he be issuing?
must we be issuing?
must you be issuing?
must they be issuing? 	must I have issued?
must you have issued?
must he have issued?
must we have issued?
must you have issued?
must they have issued? 	must I have been issuing?
must you have been issuing?
must he have been issuing?
must we have been issuing?
must you have been issuing?
must they have been issuing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not issue?
must you not issue?
must he not issue?
must we not issue?
must you not issue?
must they not issue? 	must I not be issuing?
must you not be issuing?
must he not be issuing?
must we not be issuing?
must you not be issuing?
must they not be issuing? 	must I not have issued?
must you not have issued?
must he not have issued?
must we not have issued?
must you not have issued?
must they not have issued? 	must I not have been issuing?
must you not have been issuing?
must he not have been issuing?
must we not have been issuing?
must you not have been issuing?
must they not have been issuing?