Fig 1.
Derivation of wh-non subject phrase in Arabic.
Fig 2.
Derivation of wh-subject phrase in Arabic.
Fig 3.
Chomsky’s Phase-based framework (adopted from Chomsky, [50]).
Fig 4.
Tree structure of Rizzi’s [51] Split-CP hypothesis (adopted from Rizzi, 1997, p. 297).
Fig 5.
Derivation of Mehri wh-adjunct questions in unaccusative/ergative structures.
Fig 6.
Derivation of wh-subject extraction in unaccusative/ergative structures.
Fig 7.
Derivation of wh-subject question in unergative structures.
Fig 8.
Derivation of wh-adjunct questions in Mehri unergative structures.