English verb conjugation
COULD REDESIGN

Regular verb: redesign - redesigned - redesigned

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?