It is said that English is one of the hardest languages to learn and I believe it.
Getting caught out using the wrong type of word can be very frustration, especially for a writer. Sometimes the hand will type what the mind does not necessarily won’t. That’s where editing comes in handy.
Some of the most common errors I find myself up against are brought and bought, who’s and whose or where and were.
This page – Common Errors in English Usage – is a great page to reference too, especially if English is your second language.
How I came upon this page was wanting to understand the use of Blond and Blonde. Read all about it, it’s rather fascinating.