Islands -

The second gap is inside an "island," but the first "licit" gap makes the whole sentence feel okay to a native speaker.

A occurs when the grammatical subject of a sentence acts as one of these barriers. In English, you can usually extract a word from the object of a sentence, but doing the same to the subject results in an ill-formed "island violation". Islands

Extracting from a subject might simply be too mentally taxing for the brain to process in real-time. Exceptions and "Parasitic" Gaps The second gap is inside an "island," but

Linguists debate whether these "walls" are built into our mental grammar or caused by how we process information. 1. The Architectural View Extracting from a subject might simply be too

Once a subject moves to its final position, its internal structure is "frozen" and cannot be accessed.

Many generative grammarians argue that islands are a result of the of human language.

Some researchers suggest the problem isn't grammar, but .