could overindulge
Regular verb: overindulge - overindulged- overindulged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could overindulge
you could overindulge
he could overindulge
we could overindulge
you could overindulge
they could overindulge 	I could be overindulging
you could be overindulging
he could be overindulging
we could be overindulging
you could be overindulging
they could be overindulging	I could have overindulged
you could have overindulged
he could have overindulged
we could have overindulged
you could have overindulged
they could have overindulged	I could have been overindulging
you could have been overindulging
he could have been overindulging
we could have been overindulging
you could have been overindulging
they could have been overindulging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't overindulge
you couldn't overindulge
he couldn't overindulge
we couldn't overindulge
you couldn't overindulge
they couldn't overindulge 	I couldn't be overindulging
you couldn't be overindulging
he couldn't be overindulging
we couldn't be overindulging
you couldn't be overindulging
they couldn't be overindulging	I couldn't have overindulged
you couldn't have overindulged
he couldn't have overindulged
we couldn't have overindulged
you couldn't have overindulged
they couldn't have overindulged	I couldn't have been overindulging
you couldn't have been overindulging
he couldn't have been overindulging
we couldn't have been overindulging
you couldn't have been overindulging
they couldn't have been overindulging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I overindulge?
could you overindulge?
could he overindulge?
could we overindulge?
could you overindulge?
could they overindulge? 	could I be overindulging?
could you be overindulging?
could he be overindulging?
could we be overindulging?
could you be overindulging?
could they be overindulging? 	could I have overindulged?
could you have overindulged?
could he have overindulged?
could we have overindulged?
could you have overindulged?
could they have overindulged? 	could I have been overindulging?
could you have been overindulging?
could he have been overindulging?
could we have been overindulging?
could you have been overindulging?
could they have been overindulging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I overindulge?
couldn't you overindulge?
couldn't he overindulge?
couldn't we overindulge?
couldn't you overindulge?
couldn't they overindulge? 	couldn't I be overindulging?
couldn't you be overindulging?
couldn't he be overindulging?
couldn't we be overindulging?
couldn't you be overindulging?
couldn't they be overindulging? 	couldn't I have overindulged?
couldn't you have overindulged?
couldn't he have overindulged?
couldn't we have overindulged?
couldn't you have overindulged?
couldn't they have overindulged? 	couldn't I have been overindulging?
couldn't you have been overindulging?
couldn't he have been overindulging?
couldn't we have been overindulging?
couldn't you have been overindulging?
couldn't they have been overindulging?