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 can't richen
you can't richen
he can't richen
we can't richen
you can't richen
they can't richen

V-ing form

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

Perfect

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

V-ing perfect

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

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't I richen?
can't you richen?
can't he richen?
can't we richen?
can't you richen?
can't they richen?

V-ing form

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?

Perfect

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?

V-ing perfect

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?

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