can pumice
Regular verb: pumice - pumiced- pumiced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can pumice
you can pumice
she can pumice
we can pumice
you can pumice
they can pumice 	I can be pumicing
you can be pumicing
she can be pumicing
we can be pumicing
you can be pumicing
they can be pumicing	I can have pumiced
you can have pumiced
she can have pumiced
we can have pumiced
you can have pumiced
they can have pumiced	I can have been pumicing
you can have been pumicing
she can have been pumicing
we can have been pumicing
you can have been pumicing
they can have been pumicing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot pumice
you cannot pumice
she cannot pumice
we cannot pumice
you cannot pumice
they cannot pumice 	I cannot be pumicing
you cannot be pumicing
she cannot be pumicing
we cannot be pumicing
you cannot be pumicing
they cannot be pumicing	I cannot have pumiced
you cannot have pumiced
she cannot have pumiced
we cannot have pumiced
you cannot have pumiced
they cannot have pumiced	I cannot have been pumicing
you cannot have been pumicing
she cannot have been pumicing
we cannot have been pumicing
you cannot have been pumicing
they cannot have been pumicing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I pumice?
can you pumice?
can she pumice?
can we pumice?
can you pumice?
can they pumice? 	can I be pumicing?
can you be pumicing?
can she be pumicing?
can we be pumicing?
can you be pumicing?
can they be pumicing? 	can I have pumiced?
can you have pumiced?
can she have pumiced?
can we have pumiced?
can you have pumiced?
can they have pumiced? 	can I have been pumicing?
can you have been pumicing?
can she have been pumicing?
can we have been pumicing?
can you have been pumicing?
can they have been pumicing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not pumice?
can you not pumice?
can she not pumice?
can we not pumice?
can you not pumice?
can they not pumice? 	can I not be pumicing?
can you not be pumicing?
can she not be pumicing?
can we not be pumicing?
can you not be pumicing?
can they not be pumicing? 	can I not have pumiced?
can you not have pumiced?
can she not have pumiced?
can we not have pumiced?
can you not have pumiced?
can they not have pumiced? 	can I not have been pumicing?
can you not have been pumicing?
can she not have been pumicing?
can we not have been pumicing?
can you not have been pumicing?
can they not have been pumicing?