The Type 3 grammatical errors are less serious than the Type 1 and Type 2 errors, but that doesn't mean they aren't important. Using your words and punctuation correctly means that your reader can focus on what you're trying to say instead of how you say it. This makes a good impression of you, and it presents your ideas in the best possible light.
Type III |
Errors in mechanics |
Italics |
Abbreviations and numbers |
Period, question mark, exclamation point, colon, dash, parentheses, brackets |
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Errors in spelling and hyphenation |
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Errors in usage |
Unity and logical thinking |
Separation of related sentence parts, split infinitive |
https://en.wikibooks.org/wiki/Rhetoric_and_Composition/Punctuation
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