Expletives

The expletive is sometimes not co-indexed with anything, not just in weather expressions.

Það er byggilegt á Íslandi (literally 'It is buildable in Iceland').

( (IP-MAT (NP-SBJ (EX Það)
          (BEP er)
          (ADJP (ADJ byggilegt)
          (PP (P á) (NP (N Íslandi)))))