must indulge
Regular verb: indulge - indulged- indulged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must indulge
you must indulge
she must indulge
we must indulge
you must indulge
they must indulge 	I must be indulging
you must be indulging
she must be indulging
we must be indulging
you must be indulging
they must be indulging	I must have indulged
you must have indulged
she must have indulged
we must have indulged
you must have indulged
they must have indulged	I must have been indulging
you must have been indulging
she must have been indulging
we must have been indulging
you must have been indulging
they must have been indulging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't indulge
you mustn't indulge
she mustn't indulge
we mustn't indulge
you mustn't indulge
they mustn't indulge 	I mustn't be indulging
you mustn't be indulging
she mustn't be indulging
we mustn't be indulging
you mustn't be indulging
they mustn't be indulging	I mustn't have indulged
you mustn't have indulged
she mustn't have indulged
we mustn't have indulged
you mustn't have indulged
they mustn't have indulged	I mustn't have been indulging
you mustn't have been indulging
she mustn't have been indulging
we mustn't have been indulging
you mustn't have been indulging
they mustn't have been indulging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I indulge?
must you indulge?
must she indulge?
must we indulge?
must you indulge?
must they indulge? 	must I be indulging?
must you be indulging?
must she be indulging?
must we be indulging?
must you be indulging?
must they be indulging? 	must I have indulged?
must you have indulged?
must she have indulged?
must we have indulged?
must you have indulged?
must they have indulged? 	must I have been indulging?
must you have been indulging?
must she have been indulging?
must we have been indulging?
must you have been indulging?
must they have been indulging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I indulge?
mustn't you indulge?
mustn't she indulge?
mustn't we indulge?
mustn't you indulge?
mustn't they indulge? 	mustn't I be indulging?
mustn't you be indulging?
mustn't she be indulging?
mustn't we be indulging?
mustn't you be indulging?
mustn't they be indulging? 	mustn't I have indulged?
mustn't you have indulged?
mustn't she have indulged?
mustn't we have indulged?
mustn't you have indulged?
mustn't they have indulged? 	mustn't I have been indulging?
mustn't you have been indulging?
mustn't she have been indulging?
mustn't we have been indulging?
mustn't you have been indulging?
mustn't they have been indulging?