It's good to learn all kinds of English phrases. It's good to learn nice English phrases so that you can use them to say nice things. It's good to learn mean English phrases so that you can recognize and understand them when you read them or hear them. You should, however, never say these phrases. I'm sure you're just too nice of a person to do that.
In this English lesson we'll look at phrases like: You'll never amount to anything! You suck! You're just like your father!
We'll also look at mean questions like: Why can't you be more like your brother? or Why can't you be more like your cousin?
All in all, these are great phrases to learn but not great phrases to use. I'm happy to help you learn them anyways!
I hope you enjoyed this English lesson about phrases you should never use!
Note: This is the audio portion of a Youtube English lesson which you can watch right here: https://www.youtube.com/watch?v=itbFvLiqoVw or find by searching Youtube for, "Bob the Canadian Mean"