must determine
Regular verb: determine - determined- determined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must determine
you must determine
she must determine
we must determine
you must determine
they must determine 	I must be determining
you must be determining
she must be determining
we must be determining
you must be determining
they must be determining	I must have determined
you must have determined
she must have determined
we must have determined
you must have determined
they must have determined	I must have been determining
you must have been determining
she must have been determining
we must have been determining
you must have been determining
they must have been determining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't determine
you mustn't determine
she mustn't determine
we mustn't determine
you mustn't determine
they mustn't determine 	I mustn't be determining
you mustn't be determining
she mustn't be determining
we mustn't be determining
you mustn't be determining
they mustn't be determining	I mustn't have determined
you mustn't have determined
she mustn't have determined
we mustn't have determined
you mustn't have determined
they mustn't have determined	I mustn't have been determining
you mustn't have been determining
she mustn't have been determining
we mustn't have been determining
you mustn't have been determining
they mustn't have been determining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I determine?
must you determine?
must she determine?
must we determine?
must you determine?
must they determine? 	must I be determining?
must you be determining?
must she be determining?
must we be determining?
must you be determining?
must they be determining? 	must I have determined?
must you have determined?
must she have determined?
must we have determined?
must you have determined?
must they have determined? 	must I have been determining?
must you have been determining?
must she have been determining?
must we have been determining?
must you have been determining?
must they have been determining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I determine?
mustn't you determine?
mustn't she determine?
mustn't we determine?
mustn't you determine?
mustn't they determine? 	mustn't I be determining?
mustn't you be determining?
mustn't she be determining?
mustn't we be determining?
mustn't you be determining?
mustn't they be determining? 	mustn't I have determined?
mustn't you have determined?
mustn't she have determined?
mustn't we have determined?
mustn't you have determined?
mustn't they have determined? 	mustn't I have been determining?
mustn't you have been determining?
mustn't she have been determining?
mustn't we have been determining?
mustn't you have been determining?
mustn't they have been determining?