could overexpand
Regular verb: overexpand - overexpanded- overexpanded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could overexpand
you could overexpand
he could overexpand
we could overexpand
you could overexpand
they could overexpand 	I could be overexpanding
you could be overexpanding
he could be overexpanding
we could be overexpanding
you could be overexpanding
they could be overexpanding	I could have overexpanded
you could have overexpanded
he could have overexpanded
we could have overexpanded
you could have overexpanded
they could have overexpanded	I could have been overexpanding
you could have been overexpanding
he could have been overexpanding
we could have been overexpanding
you could have been overexpanding
they could have been overexpanding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't overexpand
you couldn't overexpand
he couldn't overexpand
we couldn't overexpand
you couldn't overexpand
they couldn't overexpand 	I couldn't be overexpanding
you couldn't be overexpanding
he couldn't be overexpanding
we couldn't be overexpanding
you couldn't be overexpanding
they couldn't be overexpanding	I couldn't have overexpanded
you couldn't have overexpanded
he couldn't have overexpanded
we couldn't have overexpanded
you couldn't have overexpanded
they couldn't have overexpanded	I couldn't have been overexpanding
you couldn't have been overexpanding
he couldn't have been overexpanding
we couldn't have been overexpanding
you couldn't have been overexpanding
they couldn't have been overexpanding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I overexpand?
could you overexpand?
could he overexpand?
could we overexpand?
could you overexpand?
could they overexpand? 	could I be overexpanding?
could you be overexpanding?
could he be overexpanding?
could we be overexpanding?
could you be overexpanding?
could they be overexpanding? 	could I have overexpanded?
could you have overexpanded?
could he have overexpanded?
could we have overexpanded?
could you have overexpanded?
could they have overexpanded? 	could I have been overexpanding?
could you have been overexpanding?
could he have been overexpanding?
could we have been overexpanding?
could you have been overexpanding?
could they have been overexpanding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I overexpand?
couldn't you overexpand?
couldn't he overexpand?
couldn't we overexpand?
couldn't you overexpand?
couldn't they overexpand? 	couldn't I be overexpanding?
couldn't you be overexpanding?
couldn't he be overexpanding?
couldn't we be overexpanding?
couldn't you be overexpanding?
couldn't they be overexpanding? 	couldn't I have overexpanded?
couldn't you have overexpanded?
couldn't he have overexpanded?
couldn't we have overexpanded?
couldn't you have overexpanded?
couldn't they have overexpanded? 	couldn't I have been overexpanding?
couldn't you have been overexpanding?
couldn't he have been overexpanding?
couldn't we have been overexpanding?
couldn't you have been overexpanding?
couldn't they have been overexpanding?