English verb conjugation CAN RICHEN

Regular verb: richen - richened - richened

Affirmation

Simple form

I can richen
you can richen
he can richen
we can richen
you can richen
they can richen

V-ing form

I can be richening
you can be richening
he can be richening
we can be richening
you can be richening
they can be richening

Perfect

I can have richened
you can have richened
he can have richened
we can have richened
you can have richened
they can have richened

V-ing perfect

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

Negation

Simple form

I cannot richen
you cannot richen
he cannot richen
we cannot richen
you cannot richen
they cannot richen

V-ing form

I cannot be richening
you cannot be richening
he cannot be richening
we cannot be richening
you cannot be richening
they cannot be richening

Perfect

I cannot have richened
you cannot have richened
he cannot have richened
we cannot have richened
you cannot have richened
they cannot have richened

V-ing perfect

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

Interrogative form

Simple form

can I richen?
can you richen?
can he richen?
can we richen?
can you richen?
can they richen?

V-ing form

can I be richening?
can you be richening?
can he be richening?
can we be richening?
can you be richening?
can they be richening?

Perfect

can I have richened?
can you have richened?
can he have richened?
can we have richened?
can you have richened?
can they have richened?

V-ing perfect

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?

Interro-negative form

Simple form

can I not richen?
can you not richen?
can he not richen?
can we not richen?
can you not richen?
can they not richen?

V-ing form

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?

Perfect

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?

V-ing perfect

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?

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