Conjugación del verbo inglés
CAN RICHEN

Verbo regular: richen - richened - richened

Afirmación

Forma simple	Forma con 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
Perfecto	Perfecto con V-ing
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

Negación

Forma simple	Forma con V-ing
I cannot richen you cannot richen he cannot richen we cannot richen you cannot richen they cannot richen	I cannot be richening you cannot be richening he cannot be richening we cannot be richening you cannot be richening they cannot be richening
Perfecto	Perfecto con V-ing
I cannot have richened you cannot have richened he cannot have richened we cannot have richened you cannot have richened they cannot have richened	I cannot have been richening you cannot have been richening he cannot have been richening we cannot have been richening you cannot have been richening they cannot have been richening

Forma interrogativa

Forma simple	Forma con 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?
Perfecto	Perfecto con V-ing
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?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not richen? can you not richen? can he not richen? can we not richen? can you not richen? can they not richen?	can I not be richening? can you not be richening? can he not be richening? can we not be richening? can you not be richening? can they not be richening?
Perfecto	Perfecto con V-ing
can I not have richened? can you not have richened? can he not have richened? can we not have richened? can you not have richened? can they not have richened?	can I not have been richening? can you not have been richening? can he not have been richening? can we not have been richening? can you not have been richening? can they not have been richening?