Exercise 4Exercise 4
a) In the sentence John’s message arrived the verb arrive is an unaccusative
verb, which takes only one argument, assigning a theme thematic role to it. The
argument is in the specifier position of the VP in the D-structure. Since DPs need
Case, it has to move to the specifier of the IP, where it gets nominative Case from the
finite I head. The higher vP in the structure hosts the tense morpheme -ed, which the
lexical verb picks up on its way to I.
(1) CPC'C IPDP 1 I'John’s message I vParrive 2 +ed 3 v'v VPt 2 +t 3 t 1 V'Vt 2