can richen
Verbe régulier : richen - richened- richened

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can richen
you can richen
he can richen
we can richen
you can richen
they can richen 	I can be richening
you can be richening
he can be richening
we can be richening
you can be richening
they can be richening	I can have richened
you can have richened
he can have richened
we can have richened
you can have richened
they can have richened	I can have been richening
you can have been richening
he can have been richening
we can have been richening
you can have been richening
they can have been richening	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't richen
you can't richen
he can't richen
we can't richen
you can't richen
they can't richen 	I can't be richening
you can't be richening
he can't be richening
we can't be richening
you can't be richening
they can't be richening	I can't have richened
you can't have richened
he can't have richened
we can't have richened
you can't have richened
they can't have richened	I can't have been richening
you can't have been richening
he can't have been richening
we can't have been richening
you can't have been richening
they can't have been richening	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I richen?
can you richen?
can he richen?
can we richen?
can you richen?
can they richen? 	can I be richening?
can you be richening?
can he be richening?
can we be richening?
can you be richening?
can they be richening? 	can I have richened?
can you have richened?
can he have richened?
can we have richened?
can you have richened?
can they have richened? 	can I have been richening?
can you have been richening?
can he have been richening?
can we have been richening?
can you have been richening?
can they have been richening? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I richen?
can't you richen?
can't he richen?
can't we richen?
can't you richen?
can't they richen? 	can't I be richening?
can't you be richening?
can't he be richening?
can't we be richening?
can't you be richening?
can't they be richening? 	can't I have richened?
can't you have richened?
can't he have richened?
can't we have richened?
can't you have richened?
can't they have richened? 	can't I have been richening?
can't you have been richening?
can't he have been richening?
can't we have been richening?
can't you have been richening?
can't they have been richening?