could ripen
Verbo regular: ripen - ripened- ripened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could ripen
you could ripen
he could ripen
we could ripen
you could ripen
they could ripen 	I could be ripening
you could be ripening
he could be ripening
we could be ripening
you could be ripening
they could be ripening	I could have ripened
you could have ripened
he could have ripened
we could have ripened
you could have ripened
they could have ripened	I could have been ripening
you could have been ripening
he could have been ripening
we could have been ripening
you could have been ripening
they could have been ripening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not ripen
you could not ripen
he could not ripen
we could not ripen
you could not ripen
they could not ripen 	I could not be ripening
you could not be ripening
he could not be ripening
we could not be ripening
you could not be ripening
they could not be ripening	I could not have ripened
you could not have ripened
he could not have ripened
we could not have ripened
you could not have ripened
they could not have ripened	I could not have been ripening
you could not have been ripening
he could not have been ripening
we could not have been ripening
you could not have been ripening
they could not have been ripening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I ripen?
could you ripen?
could he ripen?
could we ripen?
could you ripen?
could they ripen? 	could I be ripening?
could you be ripening?
could he be ripening?
could we be ripening?
could you be ripening?
could they be ripening? 	could I have ripened?
could you have ripened?
could he have ripened?
could we have ripened?
could you have ripened?
could they have ripened? 	could I have been ripening?
could you have been ripening?
could he have been ripening?
could we have been ripening?
could you have been ripening?
could they have been ripening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not ripen?
could you not ripen?
could he not ripen?
could we not ripen?
could you not ripen?
could they not ripen? 	could I not be ripening?
could you not be ripening?
could he not be ripening?
could we not be ripening?
could you not be ripening?
could they not be ripening? 	could I not have ripened?
could you not have ripened?
could he not have ripened?
could we not have ripened?
could you not have ripened?
could they not have ripened? 	could I not have been ripening?
could you not have been ripening?
could he not have been ripening?
could we not have been ripening?
could you not have been ripening?
could they not have been ripening?