I must commiserate you must commiserate he must commiserate we must commiserate you must commiserate they must commiserate
V-ing form
I must be commiserating you must be commiserating he must be commiserating we must be commiserating you must be commiserating they must be commiserating
Perfect
I must have commiserated you must have commiserated he must have commiserated we must have commiserated you must have commiserated they must have commiserated
V-ing perfect
I must have been commiserating you must have been commiserating he must have been commiserating we must have been commiserating you must have been commiserating they must have been commiserating
Negation
Simple form
I must not commiserate you must not commiserate he must not commiserate we must not commiserate you must not commiserate they must not commiserate
V-ing form
I must not be commiserating you must not be commiserating he must not be commiserating we must not be commiserating you must not be commiserating they must not be commiserating
Perfect
I must not have commiserated you must not have commiserated he must not have commiserated we must not have commiserated you must not have commiserated they must not have commiserated
V-ing perfect
I must not have been commiserating you must not have been commiserating he must not have been commiserating we must not have been commiserating you must not have been commiserating they must not have been commiserating
Interrogative form
Simple form
must I commiserate? must you commiserate? must he commiserate? must we commiserate? must you commiserate? must they commiserate?
V-ing form
must I be commiserating? must you be commiserating? must he be commiserating? must we be commiserating? must you be commiserating? must they be commiserating?
Perfect
must I have commiserated? must you have commiserated? must he have commiserated? must we have commiserated? must you have commiserated? must they have commiserated?
V-ing perfect
must I have been commiserating? must you have been commiserating? must he have been commiserating? must we have been commiserating? must you have been commiserating? must they have been commiserating?
Interro-negative form
Simple form
must I not commiserate? must you not commiserate? must he not commiserate? must we not commiserate? must you not commiserate? must they not commiserate?
V-ing form
must I not be commiserating? must you not be commiserating? must he not be commiserating? must we not be commiserating? must you not be commiserating? must they not be commiserating?
Perfect
must I not have commiserated? must you not have commiserated? must he not have commiserated? must we not have commiserated? must you not have commiserated? must they not have commiserated?
V-ing perfect
must I not have been commiserating? must you not have been commiserating? must he not have been commiserating? must we not have been commiserating? must you not have been commiserating? must they not have been commiserating?