Question

Hey dude - Hello- Bye - Hi-Good morning. What's up. Good night- Hey dude-Enjoy
your day. Good afternoon - Hi, what's up?- Good bye - How's everything?- Good
evening - What's new?- hey buddy

me pueden ayudar a saber cuales son los formales e informales​

Answer 1

Explicación:

Informal : hey dude. Hi. Whats up. Hi Whats up. Hey buddy. Bye. Whats new

Formal:hello. good morning. Good night. Enjoy your day. Good afternoon. Goodbye. Hows everything. Good evening.