must wither
Regular verb: wither - withered- withered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must wither
you must wither
she must wither
we must wither
you must wither
they must wither 	I must be withering
you must be withering
she must be withering
we must be withering
you must be withering
they must be withering	I must have withered
you must have withered
she must have withered
we must have withered
you must have withered
they must have withered	I must have been withering
you must have been withering
she must have been withering
we must have been withering
you must have been withering
they must have been withering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't wither
you mustn't wither
she mustn't wither
we mustn't wither
you mustn't wither
they mustn't wither 	I mustn't be withering
you mustn't be withering
she mustn't be withering
we mustn't be withering
you mustn't be withering
they mustn't be withering	I mustn't have withered
you mustn't have withered
she mustn't have withered
we mustn't have withered
you mustn't have withered
they mustn't have withered	I mustn't have been withering
you mustn't have been withering
she mustn't have been withering
we mustn't have been withering
you mustn't have been withering
they mustn't have been withering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I wither?
must you wither?
must she wither?
must we wither?
must you wither?
must they wither? 	must I be withering?
must you be withering?
must she be withering?
must we be withering?
must you be withering?
must they be withering? 	must I have withered?
must you have withered?
must she have withered?
must we have withered?
must you have withered?
must they have withered? 	must I have been withering?
must you have been withering?
must she have been withering?
must we have been withering?
must you have been withering?
must they have been withering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I wither?
mustn't you wither?
mustn't she wither?
mustn't we wither?
mustn't you wither?
mustn't they wither? 	mustn't I be withering?
mustn't you be withering?
mustn't she be withering?
mustn't we be withering?
mustn't you be withering?
mustn't they be withering? 	mustn't I have withered?
mustn't you have withered?
mustn't she have withered?
mustn't we have withered?
mustn't you have withered?
mustn't they have withered? 	mustn't I have been withering?
mustn't you have been withering?
mustn't she have been withering?
mustn't we have been withering?
mustn't you have been withering?
mustn't they have been withering?