could redesign
Regular verb: redesign - redesigned- redesigned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could redesign
you could redesign
she could redesign
we could redesign
you could redesign
they could redesign 	I could be redesigning
you could be redesigning
she could be redesigning
we could be redesigning
you could be redesigning
they could be redesigning	I could have redesigned
you could have redesigned
she could have redesigned
we could have redesigned
you could have redesigned
they could have redesigned	I could have been redesigning
you could have been redesigning
she could have been redesigning
we could have been redesigning
you could have been redesigning
they could have been redesigning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't redesign
you couldn't redesign
she couldn't redesign
we couldn't redesign
you couldn't redesign
they couldn't redesign 	I couldn't be redesigning
you couldn't be redesigning
she couldn't be redesigning
we couldn't be redesigning
you couldn't be redesigning
they couldn't be redesigning	I couldn't have redesigned
you couldn't have redesigned
she couldn't have redesigned
we couldn't have redesigned
you couldn't have redesigned
they couldn't have redesigned	I couldn't have been redesigning
you couldn't have been redesigning
she couldn't have been redesigning
we couldn't have been redesigning
you couldn't have been redesigning
they couldn't have been redesigning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I redesign?
could you redesign?
could she redesign?
could we redesign?
could you redesign?
could they redesign? 	could I be redesigning?
could you be redesigning?
could she be redesigning?
could we be redesigning?
could you be redesigning?
could they be redesigning? 	could I have redesigned?
could you have redesigned?
could she have redesigned?
could we have redesigned?
could you have redesigned?
could they have redesigned? 	could I have been redesigning?
could you have been redesigning?
could she have been redesigning?
could we have been redesigning?
could you have been redesigning?
could they have been redesigning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I redesign?
couldn't you redesign?
couldn't she redesign?
couldn't we redesign?
couldn't you redesign?
couldn't they redesign? 	couldn't I be redesigning?
couldn't you be redesigning?
couldn't she be redesigning?
couldn't we be redesigning?
couldn't you be redesigning?
couldn't they be redesigning? 	couldn't I have redesigned?
couldn't you have redesigned?
couldn't she have redesigned?
couldn't we have redesigned?
couldn't you have redesigned?
couldn't they have redesigned? 	couldn't I have been redesigning?
couldn't you have been redesigning?
couldn't she have been redesigning?
couldn't we have been redesigning?
couldn't you have been redesigning?
couldn't they have been redesigning?