must commiserate
Regular verb: commiserate - commiserated- commiserated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must commiserate
you must commiserate
he must commiserate
we must commiserate
you must commiserate
they must commiserate 	I must be commiserating
you must be commiserating
he must be commiserating
we must be commiserating
you must be commiserating
they must be commiserating	I must have commiserated
you must have commiserated
he must have commiserated
we must have commiserated
you must have commiserated
they must have commiserated	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 	V-ing form 	Perfect 	V-ing perfect 	
I must not commiserate
you must not commiserate
he must not commiserate
we must not commiserate
you must not commiserate
they must not commiserate 	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	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	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 	V-ing form 	Perfect 	V-ing perfect 	
must I commiserate?
must you commiserate?
must he commiserate?
must we commiserate?
must you commiserate?
must they commiserate? 	must I be commiserating?
must you be commiserating?
must he be commiserating?
must we be commiserating?
must you be commiserating?
must they be commiserating? 	must I have commiserated?
must you have commiserated?
must he have commiserated?
must we have commiserated?
must you have commiserated?
must they have commiserated? 	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 	V-ing form 	Perfect 	V-ing perfect 	
must I not commiserate?
must you not commiserate?
must he not commiserate?
must we not commiserate?
must you not commiserate?
must they not commiserate? 	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? 	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? 	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?