‘I Had A Stroke’: 50 Typos That Might Just Send You Spiraling Down To Cuckoo Land

According to the sister and brother duo Kathy Petras and Ross Petras, who co-authored the book 'You're Saying It Wrong: A Pronunciation Guide to the 150 Most Commonly Mispronounced Words and Their Tangled Histories of Misuse,' 11 of the most common grammar mistakes the word experts hear are:

1. apostrophes (Wrong: We need to get our sale’s numbers up. Right: We need to get our sales numbers up.)
2. Everyday/every day (Wrong: He starts work everyday at 8 a.m. Right: He starts work every day at 8 a.m.)
3. I/me (Wrong: The marketing manager told Riley and I to talk with her. Right: The marketing manager told Riley and me to talk with her.)
4. its/it's (Wrong: The company just celebrated it’s eighth year since it went public. Right: The company just celebrated its eighth year since it went public.)
5. less/fewer (Wrong: Less than 50 people showed up for the presentation. Right: Fewer than 50 people showed up for the presentation.)
6. lie/lay (Wrong: I could just lay down and go to sleep. Right: I could just lie down and go to sleep.)
7. lose/loose (Wrong: If we stay on this track, we can’t loose. Right: If we stay on this track, we can’t lose.)
8. that/who (Wrong: The people that reach their sales target will get a reward. Right: The people who reach their sales target will get a reward.)
9. then/than (Wrong: That presentation was better then the first one. Right: That presentation was better than the first one.)
10. there/their/they're (Wrong: There going to they’re office over their. Right: They’re going to their office over there.)
11. your/you’re (Wrong: Your my favorite supervisor. Right: You’re my favorite supervisor.)

But your reaction to these picture can tell you something about your own nature, too. Linguistics experts from the University of Michigan found that extroverted people are likely to overlook typos and grammatical errors that would cause introverted people to judge the person who makes such errors more negatively.

The researchers invited 83 participants and asked them all to read email responses to an ad for a housemate, which either contained no errors or had been altered to include typos (e.g. "teh" instead of "the") or grammatical mix-ups, such as too/to or it's/its.