Ten Expressions to Use In Speaking And Writing

   1. Bye

   2. Goodbye

   3. Bye for now

   4. See you! / See ya

   5. Be seeing you

   6. See you soon

   7. I'm off.

   8. Cheerio

   9. Catch you later

   Good night   .10 

 How To Use These Phrases in Your English

o	Phrase 1 is the most common phrase that British people say. Note: we don't often say 'Bye-bye'. This sounds rather childish.
o	Phrase 2 is a little more formal.
o	Phrases 3, 4, 5 and 6 are quite informal and friendly. They mean that you expect you will see the other person again soon.
o	Phrase 7 is short and not very polite. You are saying that you are leaving without a farewell greeting.
o	Phrase 8 is a little old fashioned but quite informal.
o	Phrase 9 is also very informal and says that you expect to see the other person again soon.
o	We only say phrase 10 at night.