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