English verb conjugation MUST DETERIORATE

Regular verb: deteriorate - deteriorated - deteriorated

Affirmation

Simple form

I must deteriorate
you must deteriorate
he must deteriorate
we must deteriorate
you must deteriorate
they must deteriorate

V-ing form

I must be deteriorating
you must be deteriorating
he must be deteriorating
we must be deteriorating
you must be deteriorating
they must be deteriorating

Perfect

I must have deteriorated
you must have deteriorated
he must have deteriorated
we must have deteriorated
you must have deteriorated
they must have deteriorated

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I deteriorate?
must you deteriorate?
must he deteriorate?
must we deteriorate?
must you deteriorate?
must they deteriorate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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