I could need you could need she could need we could need you could need they could need
V-ing form
I could be needing you could be needing she could be needing we could be needing you could be needing they could be needing
Perfect
I could have needed you could have needed she could have needed we could have needed you could have needed they could have needed
V-ing perfect
I could have been needing you could have been needing she could have been needing we could have been needing you could have been needing they could have been needing
Negation
Simple form
I could not need you could not need she could not need we could not need you could not need they could not need
V-ing form
I could not be needing you could not be needing she could not be needing we could not be needing you could not be needing they could not be needing
Perfect
I could not have needed you could not have needed she could not have needed we could not have needed you could not have needed they could not have needed
V-ing perfect
I could not have been needing you could not have been needing she could not have been needing we could not have been needing you could not have been needing they could not have been needing
Interrogative form
Simple form
could I need? could you need? could she need? could we need? could you need? could they need?
V-ing form
could I be needing? could you be needing? could she be needing? could we be needing? could you be needing? could they be needing?
Perfect
could I have needed? could you have needed? could she have needed? could we have needed? could you have needed? could they have needed?
V-ing perfect
could I have been needing? could you have been needing? could she have been needing? could we have been needing? could you have been needing? could they have been needing?
Interro-negative form
Simple form
could I not need? could you not need? could she not need? could we not need? could you not need? could they not need?
V-ing form
could I not be needing? could you not be needing? could she not be needing? could we not be needing? could you not be needing? could they not be needing?
Perfect
could I not have needed? could you not have needed? could she not have needed? could we not have needed? could you not have needed? could they not have needed?
V-ing perfect
could I not have been needing? could you not have been needing? could she not have been needing? could we not have been needing? could you not have been needing? could they not have been needing?