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 must not separate you must not separate he must not separate we must not separate you must not separate they must not separate	I must not be separating you must not be separating he must not be separating we must not be separating you must not be separating they must not be separating
Perfect	V-ing perfect
I must not have separated you must not have separated he must not have separated we must not have separated you must not have separated they must not have separated	I must not have been separating you must not have been separating he must not have been separating we must not have been separating you must not have been separating they must not 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
must I not separate? must you not separate? must he not separate? must we not separate? must you not separate? must they not separate?	must I not be separating? must you not be separating? must he not be separating? must we not be separating? must you not be separating? must they not be separating?
Perfect	V-ing perfect
must I not have separated? must you not have separated? must he not have separated? must we not have separated? must you not have separated? must they not have separated?	must I not have been separating? must you not have been separating? must he not have been separating? must we not have been separating? must you not have been separating? must they not have been separating?