I can need you can need he can need we can need you can need they can need
V-ing form
I can be needing you can be needing he can be needing we can be needing you can be needing they can be needing
Perfect
I can have needed you can have needed he 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 he 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 he cannot need we cannot need you cannot need they cannot need
V-ing form
I cannot be needing you cannot be needing he cannot be needing we cannot be needing you cannot be needing they cannot be needing
Perfect
I cannot have needed you cannot have needed he 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 he 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 he need? can we need? can you need? can they need?
V-ing form
can I be needing? can you be needing? can he be needing? can we be needing? can you be needing? can they be needing?
Perfect
can I have needed? can you have needed? can he 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 he 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 he 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 he 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 he 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 he not have been needing? can we not have been needing? can you not have been needing? can they not have been needing?