could chap
Verbo regular: chap - chapped- chapped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could chap
you could chap
he could chap
we could chap
you could chap
they could chap 	I could be chapping
you could be chapping
he could be chapping
we could be chapping
you could be chapping
they could be chapping	I could have chapped
you could have chapped
he could have chapped
we could have chapped
you could have chapped
they could have chapped	I could have been chapping
you could have been chapping
he could have been chapping
we could have been chapping
you could have been chapping
they could have been chapping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not chap
you could not chap
he could not chap
we could not chap
you could not chap
they could not chap 	I could not be chapping
you could not be chapping
he could not be chapping
we could not be chapping
you could not be chapping
they could not be chapping	I could not have chapped
you could not have chapped
he could not have chapped
we could not have chapped
you could not have chapped
they could not have chapped	I could not have been chapping
you could not have been chapping
he could not have been chapping
we could not have been chapping
you could not have been chapping
they could not have been chapping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I chap?
could you chap?
could he chap?
could we chap?
could you chap?
could they chap? 	could I be chapping?
could you be chapping?
could he be chapping?
could we be chapping?
could you be chapping?
could they be chapping? 	could I have chapped?
could you have chapped?
could he have chapped?
could we have chapped?
could you have chapped?
could they have chapped? 	could I have been chapping?
could you have been chapping?
could he have been chapping?
could we have been chapping?
could you have been chapping?
could they have been chapping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not chap?
could you not chap?
could he not chap?
could we not chap?
could you not chap?
could they not chap? 	could I not be chapping?
could you not be chapping?
could he not be chapping?
could we not be chapping?
could you not be chapping?
could they not be chapping? 	could I not have chapped?
could you not have chapped?
could he not have chapped?
could we not have chapped?
could you not have chapped?
could they not have chapped? 	could I not have been chapping?
could you not have been chapping?
could he not have been chapping?
could we not have been chapping?
could you not have been chapping?
could they not have been chapping?