Grammar - Beginner - Part 3
isshoni 一緒に いっしょに
Adverb meaning: with (someone), together, at the same time

1. After noun + to

「誰と一緒にそこへ行ったのですか。」「友達とです。」
<<Dare to isshoni soko e itta no desu ka.>> <<Tomodachi to desu.>>
<<Who did you go there with?>> <<With a friend.>>

2. Used as adverb

今から一緒に食事をしませんか。
Ima kara isshoni shokuji o shimasen ka.
Shall we have dinner together now?

山本さんと山田さんが一緒に着きました。
Yamamoto san to yamada san ga isshoni tsukimashita.
Mr. Yamamoto and Mr. Yamada arrived at the same time.

-> See also: と to