I must activate you must activate he must activate we must activate you must activate they must activate
V-ing form
I must be activating you must be activating he must be activating we must be activating you must be activating they must be activating
Perfect
I must have activated you must have activated he must have activated we must have activated you must have activated they must have activated
V-ing perfect
I must have been activating you must have been activating he must have been activating we must have been activating you must have been activating they must have been activating
Negation
Simple form
I mustn't activate you mustn't activate he mustn't activate we mustn't activate you mustn't activate they mustn't activate
V-ing form
I mustn't be activating you mustn't be activating he mustn't be activating we mustn't be activating you mustn't be activating they mustn't be activating
Perfect
I mustn't have activated you mustn't have activated he mustn't have activated we mustn't have activated you mustn't have activated they mustn't have activated
V-ing perfect
I mustn't have been activating you mustn't have been activating he mustn't have been activating we mustn't have been activating you mustn't have been activating they mustn't have been activating
Interrogative form
Simple form
must I activate? must you activate? must he activate? must we activate? must you activate? must they activate?
V-ing form
must I be activating? must you be activating? must he be activating? must we be activating? must you be activating? must they be activating?
Perfect
must I have activated? must you have activated? must he have activated? must we have activated? must you have activated? must they have activated?
V-ing perfect
must I have been activating? must you have been activating? must he have been activating? must we have been activating? must you have been activating? must they have been activating?
Interro-negative form
Simple form
mustn't I activate? mustn't you activate? mustn't he activate? mustn't we activate? mustn't you activate? mustn't they activate?
V-ing form
mustn't I be activating? mustn't you be activating? mustn't he be activating? mustn't we be activating? mustn't you be activating? mustn't they be activating?
Perfect
mustn't I have activated? mustn't you have activated? mustn't he have activated? mustn't we have activated? mustn't you have activated? mustn't they have activated?
V-ing perfect
mustn't I have been activating? mustn't you have been activating? mustn't he have been activating? mustn't we have been activating? mustn't you have been activating? mustn't they have been activating?