basic japanese words :
Hai- Yes.
Onegai Shimasu- Please.
Konnichiwa- Hello/Hi/Good day.
Ohayo gozaimasu- Good Morning.
Hajimemashite- Nice to meet you.
Moshi moshi- Hello? ( greeting on phone)
Sumimasen- Excuse me.
Arigato- Thank you.
Gomennasai- Sorry.