must misuse
Regular verb: misuse - misused- misused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must misuse
you must misuse
she must misuse
we must misuse
you must misuse
they must misuse 	I must be misusing
you must be misusing
she must be misusing
we must be misusing
you must be misusing
they must be misusing	I must have misused
you must have misused
she must have misused
we must have misused
you must have misused
they must have misused	I must have been misusing
you must have been misusing
she must have been misusing
we must have been misusing
you must have been misusing
they must have been misusing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't misuse
you mustn't misuse
she mustn't misuse
we mustn't misuse
you mustn't misuse
they mustn't misuse 	I mustn't be misusing
you mustn't be misusing
she mustn't be misusing
we mustn't be misusing
you mustn't be misusing
they mustn't be misusing	I mustn't have misused
you mustn't have misused
she mustn't have misused
we mustn't have misused
you mustn't have misused
they mustn't have misused	I mustn't have been misusing
you mustn't have been misusing
she mustn't have been misusing
we mustn't have been misusing
you mustn't have been misusing
they mustn't have been misusing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I misuse?
must you misuse?
must she misuse?
must we misuse?
must you misuse?
must they misuse? 	must I be misusing?
must you be misusing?
must she be misusing?
must we be misusing?
must you be misusing?
must they be misusing? 	must I have misused?
must you have misused?
must she have misused?
must we have misused?
must you have misused?
must they have misused? 	must I have been misusing?
must you have been misusing?
must she have been misusing?
must we have been misusing?
must you have been misusing?
must they have been misusing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I misuse?
mustn't you misuse?
mustn't she misuse?
mustn't we misuse?
mustn't you misuse?
mustn't they misuse? 	mustn't I be misusing?
mustn't you be misusing?
mustn't she be misusing?
mustn't we be misusing?
mustn't you be misusing?
mustn't they be misusing? 	mustn't I have misused?
mustn't you have misused?
mustn't she have misused?
mustn't we have misused?
mustn't you have misused?
mustn't they have misused? 	mustn't I have been misusing?
mustn't you have been misusing?
mustn't she have been misusing?
mustn't we have been misusing?
mustn't you have been misusing?
mustn't they have been misusing?