Most authors make typos like the one mentioned in order to give you a clear image as to how the narrator tells the story and in what mood the theme is set.
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Answer:
In English grammar, sentence structure is the arrangement of words, phrases, and clauses in a sentence. The grammatical function or meaning of a sentence is dependent on this structural organization, which is also called syntax or syntactic structure
Words clause and brought have similar spelling: clause is spelled 'klawz', and brought is spelled 'brawt'. So, both are spelled with 'aw'. On the other hand, their meaning is different.