I must cerebrate you must cerebrate she must cerebrate we must cerebrate you must cerebrate they must cerebrate
V-ing form
I must be cerebrating you must be cerebrating she must be cerebrating we must be cerebrating you must be cerebrating they must be cerebrating
Perfect
I must have cerebrated you must have cerebrated she must have cerebrated we must have cerebrated you must have cerebrated they must have cerebrated
V-ing perfect
I must have been cerebrating you must have been cerebrating she must have been cerebrating we must have been cerebrating you must have been cerebrating they must have been cerebrating
Negation
Simple form
I must not cerebrate you must not cerebrate she must not cerebrate we must not cerebrate you must not cerebrate they must not cerebrate
V-ing form
I must not be cerebrating you must not be cerebrating she must not be cerebrating we must not be cerebrating you must not be cerebrating they must not be cerebrating
Perfect
I must not have cerebrated you must not have cerebrated she must not have cerebrated we must not have cerebrated you must not have cerebrated they must not have cerebrated
V-ing perfect
I must not have been cerebrating you must not have been cerebrating she must not have been cerebrating we must not have been cerebrating you must not have been cerebrating they must not have been cerebrating
Interrogative form
Simple form
must I cerebrate? must you cerebrate? must she cerebrate? must we cerebrate? must you cerebrate? must they cerebrate?
V-ing form
must I be cerebrating? must you be cerebrating? must she be cerebrating? must we be cerebrating? must you be cerebrating? must they be cerebrating?
Perfect
must I have cerebrated? must you have cerebrated? must she have cerebrated? must we have cerebrated? must you have cerebrated? must they have cerebrated?
V-ing perfect
must I have been cerebrating? must you have been cerebrating? must she have been cerebrating? must we have been cerebrating? must you have been cerebrating? must they have been cerebrating?
Interro-negative form
Simple form
must I not cerebrate? must you not cerebrate? must she not cerebrate? must we not cerebrate? must you not cerebrate? must they not cerebrate?
V-ing form
must I not be cerebrating? must you not be cerebrating? must she not be cerebrating? must we not be cerebrating? must you not be cerebrating? must they not be cerebrating?
Perfect
must I not have cerebrated? must you not have cerebrated? must she not have cerebrated? must we not have cerebrated? must you not have cerebrated? must they not have cerebrated?
V-ing perfect
must I not have been cerebrating? must you not have been cerebrating? must she not have been cerebrating? must we not have been cerebrating? must you not have been cerebrating? must they not have been cerebrating?