must subculture
Verbo regular: subculture - subcultured- subcultured

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must subculture
you must subculture
he must subculture
we must subculture
you must subculture
they must subculture 	I must be subculturing
you must be subculturing
he must be subculturing
we must be subculturing
you must be subculturing
they must be subculturing	I must have subcultured
you must have subcultured
he must have subcultured
we must have subcultured
you must have subcultured
they must have subcultured	I must have been subculturing
you must have been subculturing
he must have been subculturing
we must have been subculturing
you must have been subculturing
they must have been subculturing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not subculture
you must not subculture
he must not subculture
we must not subculture
you must not subculture
they must not subculture 	I must not be subculturing
you must not be subculturing
he must not be subculturing
we must not be subculturing
you must not be subculturing
they must not be subculturing	I must not have subcultured
you must not have subcultured
he must not have subcultured
we must not have subcultured
you must not have subcultured
they must not have subcultured	I must not have been subculturing
you must not have been subculturing
he must not have been subculturing
we must not have been subculturing
you must not have been subculturing
they must not have been subculturing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I subculture?
must you subculture?
must he subculture?
must we subculture?
must you subculture?
must they subculture? 	must I be subculturing?
must you be subculturing?
must he be subculturing?
must we be subculturing?
must you be subculturing?
must they be subculturing? 	must I have subcultured?
must you have subcultured?
must he have subcultured?
must we have subcultured?
must you have subcultured?
must they have subcultured? 	must I have been subculturing?
must you have been subculturing?
must he have been subculturing?
must we have been subculturing?
must you have been subculturing?
must they have been subculturing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not subculture?
must you not subculture?
must he not subculture?
must we not subculture?
must you not subculture?
must they not subculture? 	must I not be subculturing?
must you not be subculturing?
must he not be subculturing?
must we not be subculturing?
must you not be subculturing?
must they not be subculturing? 	must I not have subcultured?
must you not have subcultured?
must he not have subcultured?
must we not have subcultured?
must you not have subcultured?
must they not have subcultured? 	must I not have been subculturing?
must you not have been subculturing?
must he not have been subculturing?
must we not have been subculturing?
must you not have been subculturing?
must they not have been subculturing?