must preinscribe
Verbo regular: preinscribe - preinscribed- preinscribed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must preinscribe
you must preinscribe
he must preinscribe
we must preinscribe
you must preinscribe
they must preinscribe 	I must be preinscribing
you must be preinscribing
he must be preinscribing
we must be preinscribing
you must be preinscribing
they must be preinscribing	I must have preinscribed
you must have preinscribed
he must have preinscribed
we must have preinscribed
you must have preinscribed
they must have preinscribed	I must have been preinscribing
you must have been preinscribing
he must have been preinscribing
we must have been preinscribing
you must have been preinscribing
they must have been preinscribing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not preinscribe
you must not preinscribe
he must not preinscribe
we must not preinscribe
you must not preinscribe
they must not preinscribe 	I must not be preinscribing
you must not be preinscribing
he must not be preinscribing
we must not be preinscribing
you must not be preinscribing
they must not be preinscribing	I must not have preinscribed
you must not have preinscribed
he must not have preinscribed
we must not have preinscribed
you must not have preinscribed
they must not have preinscribed	I must not have been preinscribing
you must not have been preinscribing
he must not have been preinscribing
we must not have been preinscribing
you must not have been preinscribing
they must not have been preinscribing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I preinscribe?
must you preinscribe?
must he preinscribe?
must we preinscribe?
must you preinscribe?
must they preinscribe? 	must I be preinscribing?
must you be preinscribing?
must he be preinscribing?
must we be preinscribing?
must you be preinscribing?
must they be preinscribing? 	must I have preinscribed?
must you have preinscribed?
must he have preinscribed?
must we have preinscribed?
must you have preinscribed?
must they have preinscribed? 	must I have been preinscribing?
must you have been preinscribing?
must he have been preinscribing?
must we have been preinscribing?
must you have been preinscribing?
must they have been preinscribing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not preinscribe?
must you not preinscribe?
must he not preinscribe?
must we not preinscribe?
must you not preinscribe?
must they not preinscribe? 	must I not be preinscribing?
must you not be preinscribing?
must he not be preinscribing?
must we not be preinscribing?
must you not be preinscribing?
must they not be preinscribing? 	must I not have preinscribed?
must you not have preinscribed?
must he not have preinscribed?
must we not have preinscribed?
must you not have preinscribed?
must they not have preinscribed? 	must I not have been preinscribing?
must you not have been preinscribing?
must he not have been preinscribing?
must we not have been preinscribing?
must you not have been preinscribing?
must they not have been preinscribing?