could holystone
Regular verb: holystone - holystoned- holystoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could holystone
you could holystone
she could holystone
we could holystone
you could holystone
they could holystone 	I could be holystoning
you could be holystoning
she could be holystoning
we could be holystoning
you could be holystoning
they could be holystoning	I could have holystoned
you could have holystoned
she could have holystoned
we could have holystoned
you could have holystoned
they could have holystoned	I could have been holystoning
you could have been holystoning
she could have been holystoning
we could have been holystoning
you could have been holystoning
they could have been holystoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't holystone
you couldn't holystone
she couldn't holystone
we couldn't holystone
you couldn't holystone
they couldn't holystone 	I couldn't be holystoning
you couldn't be holystoning
she couldn't be holystoning
we couldn't be holystoning
you couldn't be holystoning
they couldn't be holystoning	I couldn't have holystoned
you couldn't have holystoned
she couldn't have holystoned
we couldn't have holystoned
you couldn't have holystoned
they couldn't have holystoned	I couldn't have been holystoning
you couldn't have been holystoning
she couldn't have been holystoning
we couldn't have been holystoning
you couldn't have been holystoning
they couldn't have been holystoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I holystone?
could you holystone?
could she holystone?
could we holystone?
could you holystone?
could they holystone? 	could I be holystoning?
could you be holystoning?
could she be holystoning?
could we be holystoning?
could you be holystoning?
could they be holystoning? 	could I have holystoned?
could you have holystoned?
could she have holystoned?
could we have holystoned?
could you have holystoned?
could they have holystoned? 	could I have been holystoning?
could you have been holystoning?
could she have been holystoning?
could we have been holystoning?
could you have been holystoning?
could they have been holystoning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I holystone?
couldn't you holystone?
couldn't she holystone?
couldn't we holystone?
couldn't you holystone?
couldn't they holystone? 	couldn't I be holystoning?
couldn't you be holystoning?
couldn't she be holystoning?
couldn't we be holystoning?
couldn't you be holystoning?
couldn't they be holystoning? 	couldn't I have holystoned?
couldn't you have holystoned?
couldn't she have holystoned?
couldn't we have holystoned?
couldn't you have holystoned?
couldn't they have holystoned? 	couldn't I have been holystoning?
couldn't you have been holystoning?
couldn't she have been holystoning?
couldn't we have been holystoning?
couldn't you have been holystoning?
couldn't they have been holystoning?