could overdesign
Regular verb: overdesign - overdesigned- overdesigned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could overdesign
you could overdesign
she could overdesign
we could overdesign
you could overdesign
they could overdesign 	I could be overdesigning
you could be overdesigning
she could be overdesigning
we could be overdesigning
you could be overdesigning
they could be overdesigning	I could have overdesigned
you could have overdesigned
she could have overdesigned
we could have overdesigned
you could have overdesigned
they could have overdesigned	I could have been overdesigning
you could have been overdesigning
she could have been overdesigning
we could have been overdesigning
you could have been overdesigning
they could have been overdesigning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not overdesign
you could not overdesign
she could not overdesign
we could not overdesign
you could not overdesign
they could not overdesign 	I could not be overdesigning
you could not be overdesigning
she could not be overdesigning
we could not be overdesigning
you could not be overdesigning
they could not be overdesigning	I could not have overdesigned
you could not have overdesigned
she could not have overdesigned
we could not have overdesigned
you could not have overdesigned
they could not have overdesigned	I could not have been overdesigning
you could not have been overdesigning
she could not have been overdesigning
we could not have been overdesigning
you could not have been overdesigning
they could not have been overdesigning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I overdesign?
could you overdesign?
could she overdesign?
could we overdesign?
could you overdesign?
could they overdesign? 	could I be overdesigning?
could you be overdesigning?
could she be overdesigning?
could we be overdesigning?
could you be overdesigning?
could they be overdesigning? 	could I have overdesigned?
could you have overdesigned?
could she have overdesigned?
could we have overdesigned?
could you have overdesigned?
could they have overdesigned? 	could I have been overdesigning?
could you have been overdesigning?
could she have been overdesigning?
could we have been overdesigning?
could you have been overdesigning?
could they have been overdesigning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not overdesign?
could you not overdesign?
could she not overdesign?
could we not overdesign?
could you not overdesign?
could they not overdesign? 	could I not be overdesigning?
could you not be overdesigning?
could she not be overdesigning?
could we not be overdesigning?
could you not be overdesigning?
could they not be overdesigning? 	could I not have overdesigned?
could you not have overdesigned?
could she not have overdesigned?
could we not have overdesigned?
could you not have overdesigned?
could they not have overdesigned? 	could I not have been overdesigning?
could you not have been overdesigning?
could she not have been overdesigning?
could we not have been overdesigning?
could you not have been overdesigning?
could they not have been overdesigning?