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Six questions to ask yourself before making a decision

... is "before" a preposition because it is the beginning of a prepositional phrase? Or is it an adverb since it's followed by a verb? (Or is "making" even a verb, or is it a gerund?!)

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  • It's a subordinating conjunction introducing the adverbial clause before you make a decision, which is transformed into a participial phrase before making a decision. Commented Aug 26, 2017 at 7:16
  • It's a preposition, interpreted in parallel with such a phrase as "ask ... before noon". McCawley discusses the traditional characterization as subordinate conjunction versus Jespersen's analysis as preposition, and M endorses Jespersen (in The Syntactic Phenomena of English).
    – Greg Lee
    Commented Aug 28, 2017 at 12:36
  • @JohnLawler But only if you believe in subordinating conjunctions. Otherwise it's a preposition! Commented Aug 28, 2017 at 13:57
  • Oh, OK. I can live with that, as long as we can have intransitive prepositions along with clausal-object transitive prepositions. Commented Aug 28, 2017 at 18:03

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