preposing
Preposing is a syntactic operation in which a constituent is moved to the left edge of a clause, producing a fronted element at the beginning of the sentence. In many theories, it is analyzed as movement to the left periphery (often to Spec-CP or a Topic Phrase) and can target noun phrases, clauses, or other constituents. The primary function of preposing is to topicalize or emphasize the fronted material, or to set up a contrast with the remainder of the sentence. The rest of the clause typically retains its ordinary order and may show related discourse effects, such as a shifted focus or altered information structure.
Functions and uses vary by language and context. In English, preposed material commonly serves discourse purposes,
Examples of preposing include: “That man, I saw yesterday.”; “Never have I seen such chaos.”; and “As
Cross-linguistic variation is common: many languages use fronting to mark topic or focus, while English relies