could toll
Verbo regular: toll - tolled- tolled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could toll
you could toll
she could toll
we could toll
you could toll
they could toll 	I could be tolling
you could be tolling
she could be tolling
we could be tolling
you could be tolling
they could be tolling	I could have tolled
you could have tolled
she could have tolled
we could have tolled
you could have tolled
they could have tolled	I could have been tolling
you could have been tolling
she could have been tolling
we could have been tolling
you could have been tolling
they could have been tolling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not toll
you could not toll
she could not toll
we could not toll
you could not toll
they could not toll 	I could not be tolling
you could not be tolling
she could not be tolling
we could not be tolling
you could not be tolling
they could not be tolling	I could not have tolled
you could not have tolled
she could not have tolled
we could not have tolled
you could not have tolled
they could not have tolled	I could not have been tolling
you could not have been tolling
she could not have been tolling
we could not have been tolling
you could not have been tolling
they could not have been tolling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I toll?
could you toll?
could she toll?
could we toll?
could you toll?
could they toll? 	could I be tolling?
could you be tolling?
could she be tolling?
could we be tolling?
could you be tolling?
could they be tolling? 	could I have tolled?
could you have tolled?
could she have tolled?
could we have tolled?
could you have tolled?
could they have tolled? 	could I have been tolling?
could you have been tolling?
could she have been tolling?
could we have been tolling?
could you have been tolling?
could they have been tolling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not toll?
could you not toll?
could she not toll?
could we not toll?
could you not toll?
could they not toll? 	could I not be tolling?
could you not be tolling?
could she not be tolling?
could we not be tolling?
could you not be tolling?
could they not be tolling? 	could I not have tolled?
could you not have tolled?
could she not have tolled?
could we not have tolled?
could you not have tolled?
could they not have tolled? 	could I not have been tolling?
could you not have been tolling?
could she not have been tolling?
could we not have been tolling?
could you not have been tolling?
could they not have been tolling?