The given sentence: "Pulling on his trench coat before walking out into the storm." is grammatically incorrect.
<h3>What is a Sentence?</h3>
This refers to the collection of words that is used to communicate and contains a subject and predicate,.
Hence, we can see that The given sentence: "Pulling on his trench coat before walking out into the storm." is grammatically incorrect and this is because it is a dependent clause that does not contain a subject.
Read more about sentences here:
brainly.com/question/552895
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