S + NEED + TO V+ ST +……. .+, BĐ

5. Need:+, CĐ:S + need + to V+ st +……. .+, BĐ:S (st)+ need + to be V(pII).S (st)+ need+ V-ing.Eg:You need to cut your hair.=>Your hair need to be cut.=> Your hair need cutting.