English verb conjugation MUST DISTINGUISH

Regular verb: distinguish - distinguished - distinguished

Affirmation

Simple form

I must distinguish
you must distinguish
he must distinguish
we must distinguish
you must distinguish
they must distinguish

V-ing form

I must be distinguishing
you must be distinguishing
he must be distinguishing
we must be distinguishing
you must be distinguishing
they must be distinguishing

Perfect

I must have distinguished
you must have distinguished
he must have distinguished
we must have distinguished
you must have distinguished
they must have distinguished

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

must I distinguish?
must you distinguish?
must he distinguish?
must we distinguish?
must you distinguish?
must they distinguish?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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