could overdrink
Irregular verb: overdrink - overdrank- overdrunk

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could overdrink
you could overdrink
he could overdrink
we could overdrink
you could overdrink
they could overdrink 	I could be overdrinking
you could be overdrinking
he could be overdrinking
we could be overdrinking
you could be overdrinking
they could be overdrinking	I could have overdrunk
you could have overdrunk
he could have overdrunk
we could have overdrunk
you could have overdrunk
they could have overdrunk	I could have been overdrinking
you could have been overdrinking
he could have been overdrinking
we could have been overdrinking
you could have been overdrinking
they could have been overdrinking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not overdrink
you could not overdrink
he could not overdrink
we could not overdrink
you could not overdrink
they could not overdrink 	I could not be overdrinking
you could not be overdrinking
he could not be overdrinking
we could not be overdrinking
you could not be overdrinking
they could not be overdrinking	I could not have overdrunk
you could not have overdrunk
he could not have overdrunk
we could not have overdrunk
you could not have overdrunk
they could not have overdrunk	I could not have been overdrinking
you could not have been overdrinking
he could not have been overdrinking
we could not have been overdrinking
you could not have been overdrinking
they could not have been overdrinking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I overdrink?
could you overdrink?
could he overdrink?
could we overdrink?
could you overdrink?
could they overdrink? 	could I be overdrinking?
could you be overdrinking?
could he be overdrinking?
could we be overdrinking?
could you be overdrinking?
could they be overdrinking? 	could I have overdrunk?
could you have overdrunk?
could he have overdrunk?
could we have overdrunk?
could you have overdrunk?
could they have overdrunk? 	could I have been overdrinking?
could you have been overdrinking?
could he have been overdrinking?
could we have been overdrinking?
could you have been overdrinking?
could they have been overdrinking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not overdrink?
could you not overdrink?
could he not overdrink?
could we not overdrink?
could you not overdrink?
could they not overdrink? 	could I not be overdrinking?
could you not be overdrinking?
could he not be overdrinking?
could we not be overdrinking?
could you not be overdrinking?
could they not be overdrinking? 	could I not have overdrunk?
could you not have overdrunk?
could he not have overdrunk?
could we not have overdrunk?
could you not have overdrunk?
could they not have overdrunk? 	could I not have been overdrinking?
could you not have been overdrinking?
could he not have been overdrinking?
could we not have been overdrinking?
could you not have been overdrinking?
could they not have been overdrinking?