Greetings

Hello, Good Morning, Good Afternoon (in the morning and in the afternoon)

Have a Good day

Have a good evening

Hi and Goodbye ( informal - any time of the day)

Have a Good Afternoon

Have a good night (when you go to bed)

Good Evening (after around 6pm)

see you on Monday

Please (formal "YOU")

Please (informal "YOU")

Thanks A lot and Thank you so much

Goodbye

see you soon

see you next week

see you later

see you tomorrow

I thank you( Informal "YOU" and a more formal way to say thank you)

I thank you ( a more formal way of saying thankyou)

you're welcome

You're welcome polite way or can say a formal way