could choir
Verbo regular: choir - choired- choired

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could choir
you could choir
she could choir
we could choir
you could choir
they could choir 	I could be choiring
you could be choiring
she could be choiring
we could be choiring
you could be choiring
they could be choiring	I could have choired
you could have choired
she could have choired
we could have choired
you could have choired
they could have choired	I could have been choiring
you could have been choiring
she could have been choiring
we could have been choiring
you could have been choiring
they could have been choiring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not choir
you could not choir
she could not choir
we could not choir
you could not choir
they could not choir 	I could not be choiring
you could not be choiring
she could not be choiring
we could not be choiring
you could not be choiring
they could not be choiring	I could not have choired
you could not have choired
she could not have choired
we could not have choired
you could not have choired
they could not have choired	I could not have been choiring
you could not have been choiring
she could not have been choiring
we could not have been choiring
you could not have been choiring
they could not have been choiring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I choir?
could you choir?
could she choir?
could we choir?
could you choir?
could they choir? 	could I be choiring?
could you be choiring?
could she be choiring?
could we be choiring?
could you be choiring?
could they be choiring? 	could I have choired?
could you have choired?
could she have choired?
could we have choired?
could you have choired?
could they have choired? 	could I have been choiring?
could you have been choiring?
could she have been choiring?
could we have been choiring?
could you have been choiring?
could they have been choiring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not choir?
could you not choir?
could she not choir?
could we not choir?
could you not choir?
could they not choir? 	could I not be choiring?
could you not be choiring?
could she not be choiring?
could we not be choiring?
could you not be choiring?
could they not be choiring? 	could I not have choired?
could you not have choired?
could she not have choired?
could we not have choired?
could you not have choired?
could they not have choired? 	could I not have been choiring?
could you not have been choiring?
could she not have been choiring?
could we not have been choiring?
could you not have been choiring?
could they not have been choiring?