Fifty Shades of Grey is a much celebrated romance novel written by E.L. James. Much as it is warmly (very warmly, I must say) received by many fans, grammar critics are on high alert.
Some people have criticized the erotic novel as poorly written with not-so-good language. However, the people of Grammarly reviewed the book and found some mistakes similar to other famous written novels in the past.
Check this infographic and just enjoy the book if your like. No need to be pedantic!
Infographic from Grammarly.