could retool
Verbo regular: retool - retooled- retooled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could retool
you could retool
she could retool
we could retool
you could retool
they could retool 	I could be retooling
you could be retooling
she could be retooling
we could be retooling
you could be retooling
they could be retooling	I could have retooled
you could have retooled
she could have retooled
we could have retooled
you could have retooled
they could have retooled	I could have been retooling
you could have been retooling
she could have been retooling
we could have been retooling
you could have been retooling
they could have been retooling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not retool
you could not retool
she could not retool
we could not retool
you could not retool
they could not retool 	I could not be retooling
you could not be retooling
she could not be retooling
we could not be retooling
you could not be retooling
they could not be retooling	I could not have retooled
you could not have retooled
she could not have retooled
we could not have retooled
you could not have retooled
they could not have retooled	I could not have been retooling
you could not have been retooling
she could not have been retooling
we could not have been retooling
you could not have been retooling
they could not have been retooling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I retool?
could you retool?
could she retool?
could we retool?
could you retool?
could they retool? 	could I be retooling?
could you be retooling?
could she be retooling?
could we be retooling?
could you be retooling?
could they be retooling? 	could I have retooled?
could you have retooled?
could she have retooled?
could we have retooled?
could you have retooled?
could they have retooled? 	could I have been retooling?
could you have been retooling?
could she have been retooling?
could we have been retooling?
could you have been retooling?
could they have been retooling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not retool?
could you not retool?
could she not retool?
could we not retool?
could you not retool?
could they not retool? 	could I not be retooling?
could you not be retooling?
could she not be retooling?
could we not be retooling?
could you not be retooling?
could they not be retooling? 	could I not have retooled?
could you not have retooled?
could she not have retooled?
could we not have retooled?
could you not have retooled?
could they not have retooled? 	could I not have been retooling?
could you not have been retooling?
could she not have been retooling?
could we not have been retooling?
could you not have been retooling?
could they not have been retooling?