6. Confusing homophones
Homophones — words that sound the same but have different meanings — weren't explicitly mentioned in either site's list, but we wanted to categorize these complaints.
The homophones include:
They're, their, there
could have, could of; should have, should of; would have, would of
For the first, "they're" is a contraction of "they are." "Their" is a possessive pronoun. And finally, "there" is a location.
Similarly, "you're" is the contraction of "you are," while "your" is a possessive pronoun.
You should eliminate "could of," "should of," and "would of" from your vocabulary entirely.
The last, using affect or effect, deserves its own section.