must mature
Verbo regular: mature - matured- matured

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must mature
you must mature
he must mature
we must mature
you must mature
they must mature 	I must be maturing
you must be maturing
he must be maturing
we must be maturing
you must be maturing
they must be maturing	I must have matured
you must have matured
he must have matured
we must have matured
you must have matured
they must have matured	I must have been maturing
you must have been maturing
he must have been maturing
we must have been maturing
you must have been maturing
they must have been maturing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not mature
you must not mature
he must not mature
we must not mature
you must not mature
they must not mature 	I must not be maturing
you must not be maturing
he must not be maturing
we must not be maturing
you must not be maturing
they must not be maturing	I must not have matured
you must not have matured
he must not have matured
we must not have matured
you must not have matured
they must not have matured	I must not have been maturing
you must not have been maturing
he must not have been maturing
we must not have been maturing
you must not have been maturing
they must not have been maturing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I mature?
must you mature?
must he mature?
must we mature?
must you mature?
must they mature? 	must I be maturing?
must you be maturing?
must he be maturing?
must we be maturing?
must you be maturing?
must they be maturing? 	must I have matured?
must you have matured?
must he have matured?
must we have matured?
must you have matured?
must they have matured? 	must I have been maturing?
must you have been maturing?
must he have been maturing?
must we have been maturing?
must you have been maturing?
must they have been maturing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not mature?
must you not mature?
must he not mature?
must we not mature?
must you not mature?
must they not mature? 	must I not be maturing?
must you not be maturing?
must he not be maturing?
must we not be maturing?
must you not be maturing?
must they not be maturing? 	must I not have matured?
must you not have matured?
must he not have matured?
must we not have matured?
must you not have matured?
must they not have matured? 	must I not have been maturing?
must you not have been maturing?
must he not have been maturing?
must we not have been maturing?
must you not have been maturing?
must they not have been maturing?