could ripen
Verbo regolare: ripen - ripened- ripened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto 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	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't ripen
you couldn't ripen
he couldn't ripen
we couldn't ripen
you couldn't ripen
they couldn't ripen 	I couldn't be ripening
you couldn't be ripening
he couldn't be ripening
we couldn't be ripening
you couldn't be ripening
they couldn't be ripening	I couldn't have ripened
you couldn't have ripened
he couldn't have ripened
we couldn't have ripened
you couldn't have ripened
they couldn't have ripened	I couldn't have been ripening
you couldn't have been ripening
he couldn't have been ripening
we couldn't have been ripening
you couldn't have been ripening
they couldn't have been ripening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto 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 semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I ripen?
couldn't you ripen?
couldn't he ripen?
couldn't we ripen?
couldn't you ripen?
couldn't they ripen? 	couldn't I be ripening?
couldn't you be ripening?
couldn't he be ripening?
couldn't we be ripening?
couldn't you be ripening?
couldn't they be ripening? 	couldn't I have ripened?
couldn't you have ripened?
couldn't he have ripened?
couldn't we have ripened?
couldn't you have ripened?
couldn't they have ripened? 	couldn't I have been ripening?
couldn't you have been ripening?
couldn't he have been ripening?
couldn't we have been ripening?
couldn't you have been ripening?
couldn't they have been ripening?