must deep-six
Regular verb: deep-six - deep-sixed- deep-sixed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must deep-six
you must deep-six
he must deep-six
we must deep-six
you must deep-six
they must deep-six 	I must be deep-sixing
you must be deep-sixing
he must be deep-sixing
we must be deep-sixing
you must be deep-sixing
they must be deep-sixing	I must have deep-sixed
you must have deep-sixed
he must have deep-sixed
we must have deep-sixed
you must have deep-sixed
they must have deep-sixed	I must have been deep-sixing
you must have been deep-sixing
he must have been deep-sixing
we must have been deep-sixing
you must have been deep-sixing
they must have been deep-sixing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't deep-six
you mustn't deep-six
he mustn't deep-six
we mustn't deep-six
you mustn't deep-six
they mustn't deep-six 	I mustn't be deep-sixing
you mustn't be deep-sixing
he mustn't be deep-sixing
we mustn't be deep-sixing
you mustn't be deep-sixing
they mustn't be deep-sixing	I mustn't have deep-sixed
you mustn't have deep-sixed
he mustn't have deep-sixed
we mustn't have deep-sixed
you mustn't have deep-sixed
they mustn't have deep-sixed	I mustn't have been deep-sixing
you mustn't have been deep-sixing
he mustn't have been deep-sixing
we mustn't have been deep-sixing
you mustn't have been deep-sixing
they mustn't have been deep-sixing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I deep-six?
must you deep-six?
must he deep-six?
must we deep-six?
must you deep-six?
must they deep-six? 	must I be deep-sixing?
must you be deep-sixing?
must he be deep-sixing?
must we be deep-sixing?
must you be deep-sixing?
must they be deep-sixing? 	must I have deep-sixed?
must you have deep-sixed?
must he have deep-sixed?
must we have deep-sixed?
must you have deep-sixed?
must they have deep-sixed? 	must I have been deep-sixing?
must you have been deep-sixing?
must he have been deep-sixing?
must we have been deep-sixing?
must you have been deep-sixing?
must they have been deep-sixing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I deep-six?
mustn't you deep-six?
mustn't he deep-six?
mustn't we deep-six?
mustn't you deep-six?
mustn't they deep-six? 	mustn't I be deep-sixing?
mustn't you be deep-sixing?
mustn't he be deep-sixing?
mustn't we be deep-sixing?
mustn't you be deep-sixing?
mustn't they be deep-sixing? 	mustn't I have deep-sixed?
mustn't you have deep-sixed?
mustn't he have deep-sixed?
mustn't we have deep-sixed?
mustn't you have deep-sixed?
mustn't they have deep-sixed? 	mustn't I have been deep-sixing?
mustn't you have been deep-sixing?
mustn't he have been deep-sixing?
mustn't we have been deep-sixing?
mustn't you have been deep-sixing?
mustn't they have been deep-sixing?