must pumice
Verbo regular: pumice - pumiced- pumiced

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must pumice
you must pumice
he must pumice
we must pumice
you must pumice
they must pumice 	I must be pumicing
you must be pumicing
he must be pumicing
we must be pumicing
you must be pumicing
they must be pumicing	I must have pumiced
you must have pumiced
he must have pumiced
we must have pumiced
you must have pumiced
they must have pumiced	I must have been pumicing
you must have been pumicing
he must have been pumicing
we must have been pumicing
you must have been pumicing
they must have been pumicing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not pumice
you must not pumice
he must not pumice
we must not pumice
you must not pumice
they must not pumice 	I must not be pumicing
you must not be pumicing
he must not be pumicing
we must not be pumicing
you must not be pumicing
they must not be pumicing	I must not have pumiced
you must not have pumiced
he must not have pumiced
we must not have pumiced
you must not have pumiced
they must not have pumiced	I must not have been pumicing
you must not have been pumicing
he must not have been pumicing
we must not have been pumicing
you must not have been pumicing
they must not have been pumicing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I pumice?
must you pumice?
must he pumice?
must we pumice?
must you pumice?
must they pumice? 	must I be pumicing?
must you be pumicing?
must he be pumicing?
must we be pumicing?
must you be pumicing?
must they be pumicing? 	must I have pumiced?
must you have pumiced?
must he have pumiced?
must we have pumiced?
must you have pumiced?
must they have pumiced? 	must I have been pumicing?
must you have been pumicing?
must he have been pumicing?
must we have been pumicing?
must you have been pumicing?
must they have been pumicing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not pumice?
must you not pumice?
must he not pumice?
must we not pumice?
must you not pumice?
must they not pumice? 	must I not be pumicing?
must you not be pumicing?
must he not be pumicing?
must we not be pumicing?
must you not be pumicing?
must they not be pumicing? 	must I not have pumiced?
must you not have pumiced?
must he not have pumiced?
must we not have pumiced?
must you not have pumiced?
must they not have pumiced? 	must I not have been pumicing?
must you not have been pumicing?
must he not have been pumicing?
must we not have been pumicing?
must you not have been pumicing?
must they not have been pumicing?