must distemper
Regular verb: distemper - distempered- distempered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must distemper
you must distemper
he must distemper
we must distemper
you must distemper
they must distemper 	I must be distempering
you must be distempering
he must be distempering
we must be distempering
you must be distempering
they must be distempering	I must have distempered
you must have distempered
he must have distempered
we must have distempered
you must have distempered
they must have distempered	I must have been distempering
you must have been distempering
he must have been distempering
we must have been distempering
you must have been distempering
they must have been distempering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't distemper
you mustn't distemper
he mustn't distemper
we mustn't distemper
you mustn't distemper
they mustn't distemper 	I mustn't be distempering
you mustn't be distempering
he mustn't be distempering
we mustn't be distempering
you mustn't be distempering
they mustn't be distempering	I mustn't have distempered
you mustn't have distempered
he mustn't have distempered
we mustn't have distempered
you mustn't have distempered
they mustn't have distempered	I mustn't have been distempering
you mustn't have been distempering
he mustn't have been distempering
we mustn't have been distempering
you mustn't have been distempering
they mustn't have been distempering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I distemper?
must you distemper?
must he distemper?
must we distemper?
must you distemper?
must they distemper? 	must I be distempering?
must you be distempering?
must he be distempering?
must we be distempering?
must you be distempering?
must they be distempering? 	must I have distempered?
must you have distempered?
must he have distempered?
must we have distempered?
must you have distempered?
must they have distempered? 	must I have been distempering?
must you have been distempering?
must he have been distempering?
must we have been distempering?
must you have been distempering?
must they have been distempering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I distemper?
mustn't you distemper?
mustn't he distemper?
mustn't we distemper?
mustn't you distemper?
mustn't they distemper? 	mustn't I be distempering?
mustn't you be distempering?
mustn't he be distempering?
mustn't we be distempering?
mustn't you be distempering?
mustn't they be distempering? 	mustn't I have distempered?
mustn't you have distempered?
mustn't he have distempered?
mustn't we have distempered?
mustn't you have distempered?
mustn't they have distempered? 	mustn't I have been distempering?
mustn't you have been distempering?
mustn't he have been distempering?
mustn't we have been distempering?
mustn't you have been distempering?
mustn't they have been distempering?