English verb conjugation MUST RICHEN

Regular verb: richen - richened - richened

Affirmation

Simple form

I must richen
you must richen
he must richen
we must richen
you must richen
they must richen

V-ing form

I must be richening
you must be richening
he must be richening
we must be richening
you must be richening
they must be richening

Perfect

I must have richened
you must have richened
he must have richened
we must have richened
you must have richened
they must have richened

V-ing perfect

I must have been richening
you must have been richening
he must have been richening
we must have been richening
you must have been richening
they must have been richening

Negation

Simple form

I mustn't richen
you mustn't richen
he mustn't richen
we mustn't richen
you mustn't richen
they mustn't richen

V-ing form

I mustn't be richening
you mustn't be richening
he mustn't be richening
we mustn't be richening
you mustn't be richening
they mustn't be richening

Perfect

I mustn't have richened
you mustn't have richened
he mustn't have richened
we mustn't have richened
you mustn't have richened
they mustn't have richened

V-ing perfect

I mustn't have been richening
you mustn't have been richening
he mustn't have been richening
we mustn't have been richening
you mustn't have been richening
they mustn't have been richening

Interrogative form

Simple form

must I richen?
must you richen?
must he richen?
must we richen?
must you richen?
must they richen?

V-ing form

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

Perfect

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

V-ing perfect

must I have been richening?
must you have been richening?
must he have been richening?
must we have been richening?
must you have been richening?
must they have been richening?

Interro-negative form

Simple form

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

V-ing form

mustn't I be richening?
mustn't you be richening?
mustn't he be richening?
mustn't we be richening?
mustn't you be richening?
mustn't they be richening?

Perfect

mustn't I have richened?
mustn't you have richened?
mustn't he have richened?
mustn't we have richened?
mustn't you have richened?
mustn't they have richened?

V-ing perfect

mustn't I have been richening?
mustn't you have been richening?
mustn't he have been richening?
mustn't we have been richening?
mustn't you have been richening?
mustn't they have been richening?

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