must reduce
Regular verb: reduce - reduced- reduced

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must reduce
you must reduce
she must reduce
we must reduce
you must reduce
they must reduce 	I must be reducing
you must be reducing
she must be reducing
we must be reducing
you must be reducing
they must be reducing	I must have reduced
you must have reduced
she must have reduced
we must have reduced
you must have reduced
they must have reduced	I must have been reducing
you must have been reducing
she must have been reducing
we must have been reducing
you must have been reducing
they must have been reducing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't reduce
you mustn't reduce
she mustn't reduce
we mustn't reduce
you mustn't reduce
they mustn't reduce 	I mustn't be reducing
you mustn't be reducing
she mustn't be reducing
we mustn't be reducing
you mustn't be reducing
they mustn't be reducing	I mustn't have reduced
you mustn't have reduced
she mustn't have reduced
we mustn't have reduced
you mustn't have reduced
they mustn't have reduced	I mustn't have been reducing
you mustn't have been reducing
she mustn't have been reducing
we mustn't have been reducing
you mustn't have been reducing
they mustn't have been reducing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I reduce?
must you reduce?
must she reduce?
must we reduce?
must you reduce?
must they reduce? 	must I be reducing?
must you be reducing?
must she be reducing?
must we be reducing?
must you be reducing?
must they be reducing? 	must I have reduced?
must you have reduced?
must she have reduced?
must we have reduced?
must you have reduced?
must they have reduced? 	must I have been reducing?
must you have been reducing?
must she have been reducing?
must we have been reducing?
must you have been reducing?
must they have been reducing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I reduce?
mustn't you reduce?
mustn't she reduce?
mustn't we reduce?
mustn't you reduce?
mustn't they reduce? 	mustn't I be reducing?
mustn't you be reducing?
mustn't she be reducing?
mustn't we be reducing?
mustn't you be reducing?
mustn't they be reducing? 	mustn't I have reduced?
mustn't you have reduced?
mustn't she have reduced?
mustn't we have reduced?
mustn't you have reduced?
mustn't they have reduced? 	mustn't I have been reducing?
mustn't you have been reducing?
mustn't she have been reducing?
mustn't we have been reducing?
mustn't you have been reducing?
mustn't they have been reducing?