English verb conjugation MUST DESCEND

Regular verb: descend - descended - descended

Affirmation

Simple form

I must descend
you must descend
he must descend
we must descend
you must descend
they must descend

V-ing form

I must be descending
you must be descending
he must be descending
we must be descending
you must be descending
they must be descending

Perfect

I must have descended
you must have descended
he must have descended
we must have descended
you must have descended
they must have descended

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I descend?
must you descend?
must he descend?
must we descend?
must you descend?
must they descend?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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