must leather leather
Regular verb: leather leather - leather leathered- leather leathered

, this verb may not exist. Conjugation is given as example.

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must leather leather
you must leather leather
he must leather leather
we must leather leather
you must leather leather
they must leather leather 	I must be leather leathering
you must be leather leathering
he must be leather leathering
we must be leather leathering
you must be leather leathering
they must be leather leathering	I must have leather leathered
you must have leather leathered
he must have leather leathered
we must have leather leathered
you must have leather leathered
they must have leather leathered	I must have been leather leathering
you must have been leather leathering
he must have been leather leathering
we must have been leather leathering
you must have been leather leathering
they must have been leather leathering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't leather leather
you mustn't leather leather
he mustn't leather leather
we mustn't leather leather
you mustn't leather leather
they mustn't leather leather 	I mustn't be leather leathering
you mustn't be leather leathering
he mustn't be leather leathering
we mustn't be leather leathering
you mustn't be leather leathering
they mustn't be leather leathering	I mustn't have leather leathered
you mustn't have leather leathered
he mustn't have leather leathered
we mustn't have leather leathered
you mustn't have leather leathered
they mustn't have leather leathered	I mustn't have been leather leathering
you mustn't have been leather leathering
he mustn't have been leather leathering
we mustn't have been leather leathering
you mustn't have been leather leathering
they mustn't have been leather leathering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I leather leather?
must you leather leather?
must he leather leather?
must we leather leather?
must you leather leather?
must they leather leather? 	must I be leather leathering?
must you be leather leathering?
must he be leather leathering?
must we be leather leathering?
must you be leather leathering?
must they be leather leathering? 	must I have leather leathered?
must you have leather leathered?
must he have leather leathered?
must we have leather leathered?
must you have leather leathered?
must they have leather leathered? 	must I have been leather leathering?
must you have been leather leathering?
must he have been leather leathering?
must we have been leather leathering?
must you have been leather leathering?
must they have been leather leathering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I leather leather?
mustn't you leather leather?
mustn't he leather leather?
mustn't we leather leather?
mustn't you leather leather?
mustn't they leather leather? 	mustn't I be leather leathering?
mustn't you be leather leathering?
mustn't he be leather leathering?
mustn't we be leather leathering?
mustn't you be leather leathering?
mustn't they be leather leathering? 	mustn't I have leather leathered?
mustn't you have leather leathered?
mustn't he have leather leathered?
mustn't we have leather leathered?
mustn't you have leather leathered?
mustn't they have leather leathered? 	mustn't I have been leather leathering?
mustn't you have been leather leathering?
mustn't he have been leather leathering?
mustn't we have been leather leathering?
mustn't you have been leather leathering?
mustn't they have been leather leathering?