must tarnish
Regular verb: tarnish - tarnished- tarnished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must tarnish
you must tarnish
she must tarnish
we must tarnish
you must tarnish
they must tarnish 	I must be tarnishing
you must be tarnishing
she must be tarnishing
we must be tarnishing
you must be tarnishing
they must be tarnishing	I must have tarnished
you must have tarnished
she must have tarnished
we must have tarnished
you must have tarnished
they must have tarnished	I must have been tarnishing
you must have been tarnishing
she must have been tarnishing
we must have been tarnishing
you must have been tarnishing
they must have been tarnishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't tarnish
you mustn't tarnish
she mustn't tarnish
we mustn't tarnish
you mustn't tarnish
they mustn't tarnish 	I mustn't be tarnishing
you mustn't be tarnishing
she mustn't be tarnishing
we mustn't be tarnishing
you mustn't be tarnishing
they mustn't be tarnishing	I mustn't have tarnished
you mustn't have tarnished
she mustn't have tarnished
we mustn't have tarnished
you mustn't have tarnished
they mustn't have tarnished	I mustn't have been tarnishing
you mustn't have been tarnishing
she mustn't have been tarnishing
we mustn't have been tarnishing
you mustn't have been tarnishing
they mustn't have been tarnishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I tarnish?
must you tarnish?
must she tarnish?
must we tarnish?
must you tarnish?
must they tarnish? 	must I be tarnishing?
must you be tarnishing?
must she be tarnishing?
must we be tarnishing?
must you be tarnishing?
must they be tarnishing? 	must I have tarnished?
must you have tarnished?
must she have tarnished?
must we have tarnished?
must you have tarnished?
must they have tarnished? 	must I have been tarnishing?
must you have been tarnishing?
must she have been tarnishing?
must we have been tarnishing?
must you have been tarnishing?
must they have been tarnishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I tarnish?
mustn't you tarnish?
mustn't she tarnish?
mustn't we tarnish?
mustn't you tarnish?
mustn't they tarnish? 	mustn't I be tarnishing?
mustn't you be tarnishing?
mustn't she be tarnishing?
mustn't we be tarnishing?
mustn't you be tarnishing?
mustn't they be tarnishing? 	mustn't I have tarnished?
mustn't you have tarnished?
mustn't she have tarnished?
mustn't we have tarnished?
mustn't you have tarnished?
mustn't they have tarnished? 	mustn't I have been tarnishing?
mustn't you have been tarnishing?
mustn't she have been tarnishing?
mustn't we have been tarnishing?
mustn't you have been tarnishing?
mustn't they have been tarnishing?