could holystone
Verbo regular: holystone - holystoned- holystoned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not holystone
you could not holystone
she could not holystone
we could not holystone
you could not holystone
they could not holystone 	I could not be holystoning
you could not be holystoning
she could not be holystoning
we could not be holystoning
you could not be holystoning
they could not be holystoning	I could not have holystoned
you could not have holystoned
she could not have holystoned
we could not have holystoned
you could not have holystoned
they could not have holystoned	I could not have been holystoning
you could not have been holystoning
she could not have been holystoning
we could not have been holystoning
you could not have been holystoning
they could not have been holystoning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
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? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not holystone?
could you not holystone?
could she not holystone?
could we not holystone?
could you not holystone?
could they not holystone? 	could I not be holystoning?
could you not be holystoning?
could she not be holystoning?
could we not be holystoning?
could you not be holystoning?
could they not be holystoning? 	could I not have holystoned?
could you not have holystoned?
could she not have holystoned?
could we not have holystoned?
could you not have holystoned?
could they not have holystoned? 	could I not have been holystoning?
could you not have been holystoning?
could she not have been holystoning?
could we not have been holystoning?
could you not have been holystoning?
could they not have been holystoning?