English verb conjugation
MUST SEPARATE

Regular verb: separate - separated - separated

Affirmation

Simple form	V-ing form
I must separate you must separate he must separate we must separate you must separate they must separate	I must be separating you must be separating he must be separating we must be separating you must be separating they must be separating
Perfect	V-ing perfect
I must have separated you must have separated he must have separated we must have separated you must have separated they must have separated	I must have been separating you must have been separating he must have been separating we must have been separating you must have been separating they must have been separating

Negation

Simple form	V-ing form
I mustn't separate you mustn't separate he mustn't separate we mustn't separate you mustn't separate they mustn't separate	I mustn't be separating you mustn't be separating he mustn't be separating we mustn't be separating you mustn't be separating they mustn't be separating
Perfect	V-ing perfect
I mustn't have separated you mustn't have separated he mustn't have separated we mustn't have separated you mustn't have separated they mustn't have separated	I mustn't have been separating you mustn't have been separating he mustn't have been separating we mustn't have been separating you mustn't have been separating they mustn't have been separating

Interrogative form

Simple form	V-ing form
must I separate? must you separate? must he separate? must we separate? must you separate? must they separate?	must I be separating? must you be separating? must he be separating? must we be separating? must you be separating? must they be separating?
Perfect	V-ing perfect
must I have separated? must you have separated? must he have separated? must we have separated? must you have separated? must they have separated?	must I have been separating? must you have been separating? must he have been separating? must we have been separating? must you have been separating? must they have been separating?

Interro-negative form

Simple form	V-ing form
mustn't I separate? mustn't you separate? mustn't he separate? mustn't we separate? mustn't you separate? mustn't they separate?	mustn't I be separating? mustn't you be separating? mustn't he be separating? mustn't we be separating? mustn't you be separating? mustn't they be separating?
Perfect	V-ing perfect
mustn't I have separated? mustn't you have separated? mustn't he have separated? mustn't we have separated? mustn't you have separated? mustn't they have separated?	mustn't I have been separating? mustn't you have been separating? mustn't he have been separating? mustn't we have been separating? mustn't you have been separating? mustn't they have been separating?