Relative clauses are bound clauses that modify NPs and occasionally CPs. The former are adjoined to NPs. A relative clause contains a WH-phrase which moves and is adjoined to CP: The student who likes ...

Let us start with sentence negation. At S-structure the negative particle is adjoined to the first auxiliary verb in the clause: (1 Mary went to the movies. ) a. b. Mary did not go to the movies.