Grammar can make all the difference in professional and social situations. You wouldn’t want to hand someone your CV if it was full of mistakes, and we all have that one friend who is a total grammar Nazi.
Sometimes we just don’t know the correct way to say something, and lots of people find whole new ways of saying things, to get around potentially making mistakes if they aren’t sure about something.
There are probably very few people who use perfect grammar all of the time, but take a look at these examples and see if you ever trip over any of these common mistakes!