could pumice
Regular verb: pumice - pumiced- pumiced

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

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

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

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