could richen
Verbo regolare: richen - richened- richened

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could richen
you could richen
she could richen
we could richen
you could richen
they could richen 	I could be richening
you could be richening
she could be richening
we could be richening
you could be richening
they could be richening	I could have richened
you could have richened
she could have richened
we could have richened
you could have richened
they could have richened	I could have been richening
you could have been richening
she could have been richening
we could have been richening
you could have been richening
they could have been richening	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could not richen
you could not richen
she could not richen
we could not richen
you could not richen
they could not richen 	I could not be richening
you could not be richening
she could not be richening
we could not be richening
you could not be richening
they could not be richening	I could not have richened
you could not have richened
she could not have richened
we could not have richened
you could not have richened
they could not have richened	I could not have been richening
you could not have been richening
she could not have been richening
we could not have been richening
you could not have been richening
they could not have been richening	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I richen?
could you richen?
could she richen?
could we richen?
could you richen?
could they richen? 	could I be richening?
could you be richening?
could she be richening?
could we be richening?
could you be richening?
could they be richening? 	could I have richened?
could you have richened?
could she have richened?
could we have richened?
could you have richened?
could they have richened? 	could I have been richening?
could you have been richening?
could she have been richening?
could we have been richening?
could you have been richening?
could they have been richening? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I not richen?
could you not richen?
could she not richen?
could we not richen?
could you not richen?
could they not richen? 	could I not be richening?
could you not be richening?
could she not be richening?
could we not be richening?
could you not be richening?
could they not be richening? 	could I not have richened?
could you not have richened?
could she not have richened?
could we not have richened?
could you not have richened?
could they not have richened? 	could I not have been richening?
could you not have been richening?
could she not have been richening?
could we not have been richening?
could you not have been richening?
could they not have been richening?