Moderator note: This question is extremely common. A multitude of threads have been merged to create this one. This thread is therefore very long and discusses many different examples. If you still have a doubt after reading this thread, please do not open a new thread, but ask your question at the end of this thread. Hello all! I need some help with understanding the difference of il est and c'est and when to use them. My french teacher told me just to use c'est because it's used 90% of the time. Is there a rule more concrete than this out there somewhere?! It's something so little but really really annoying. for example: If I were talking about a fast bus would I say: C'est rapide. or Il est rapide. In this context does "c'est" indicate the trip done in the bus is fast? and "il est" that the bus itself is fast? Also, could you please give me some more examples? maybe with verbs other than être. Thanks a million!