English verb conjugation MUST DIFFER

Regular verb: differ - differed - differed

Affirmation

Simple form

I must differ
you must differ
he must differ
we must differ
you must differ
they must differ

V-ing form

I must be differing
you must be differing
he must be differing
we must be differing
you must be differing
they must be differing

Perfect

I must have differed
you must have differed
he must have differed
we must have differed
you must have differed
they must have differed

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I differ?
must you differ?
must he differ?
must we differ?
must you differ?
must they differ?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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