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