“Threw” is the past tense of the verb “throw”: “The pitcher threw a curve ball.” “Through” is never a verb: “The ball came through my living room window.” Unless your sentence involves someone throwing something—even figuratively, as in “she threw out the idea casually”—the word you want is “through.”
Happy birthday, Cy Young (1867).
This is the ten-year anniversary of the Common Errors in English Usage calendar. To celebrate, we are bringing back some of our favorite interesting, funny, but sometimes merely silly entries through the years before going on hiatus in 2016.
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