must debug
Regular verb: debug - debugged- debugged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must debug
you must debug
he must debug
we must debug
you must debug
they must debug 	I must be debugging
you must be debugging
he must be debugging
we must be debugging
you must be debugging
they must be debugging	I must have debugged
you must have debugged
he must have debugged
we must have debugged
you must have debugged
they must have debugged	I must have been debugging
you must have been debugging
he must have been debugging
we must have been debugging
you must have been debugging
they must have been debugging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't debug
you mustn't debug
he mustn't debug
we mustn't debug
you mustn't debug
they mustn't debug 	I mustn't be debugging
you mustn't be debugging
he mustn't be debugging
we mustn't be debugging
you mustn't be debugging
they mustn't be debugging	I mustn't have debugged
you mustn't have debugged
he mustn't have debugged
we mustn't have debugged
you mustn't have debugged
they mustn't have debugged	I mustn't have been debugging
you mustn't have been debugging
he mustn't have been debugging
we mustn't have been debugging
you mustn't have been debugging
they mustn't have been debugging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I debug?
must you debug?
must he debug?
must we debug?
must you debug?
must they debug? 	must I be debugging?
must you be debugging?
must he be debugging?
must we be debugging?
must you be debugging?
must they be debugging? 	must I have debugged?
must you have debugged?
must he have debugged?
must we have debugged?
must you have debugged?
must they have debugged? 	must I have been debugging?
must you have been debugging?
must he have been debugging?
must we have been debugging?
must you have been debugging?
must they have been debugging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I debug?
mustn't you debug?
mustn't he debug?
mustn't we debug?
mustn't you debug?
mustn't they debug? 	mustn't I be debugging?
mustn't you be debugging?
mustn't he be debugging?
mustn't we be debugging?
mustn't you be debugging?
mustn't they be debugging? 	mustn't I have debugged?
mustn't you have debugged?
mustn't he have debugged?
mustn't we have debugged?
mustn't you have debugged?
mustn't they have debugged? 	mustn't I have been debugging?
mustn't you have been debugging?
mustn't he have been debugging?
mustn't we have been debugging?
mustn't you have been debugging?
mustn't they have been debugging?