In this chapter, I switch to an examination of the structure of interrogatives with special attention to Spanish and Catalan. In Spanish and Catalan, as illustrated in examples (1a) and (2a), there is an obligatory subject-verb inversion in interrogatives.

a. ¿Aquién visitó Juan? (Spanish)

Whom visited Juan

b. *¿A quién Juan visitó?

Whom Juan visited

a. Qui veu en Joan? (Catalan)

whom sees Joan

b. *Qui en Joan veu?

whom Joan sees