BEFORE
“Before” is a versatile word in English, functioning as a preposition, subordinating conjunction, and time adverb. As a preposition, it connects a noun or pronoun to another word, indicating something happens earlier than the time or event mentioned. As a subordinating conjunction, it connects two clauses, showing a relationship between them. As a time adverb, it modifies a verb, adjective, or another adverb to indicate when something happens. Examples from various corpora illustrate these uses.