〜ましょう
Let's do something togethermachine translation
FormationVerb ます-form (drop ます) + ましょう
Use 〜ましょう when you propose that both of you (or the whole group) do something together: "let's…". It is also the way to respond to a 〜ませんか invitation: 「ええ、行きましょう。」= Sure, let's go.
How to form it: ます-form, drop ます, add ましょう. Unlike 〜ませんか (which asks the listener's opinion), 〜ましょう takes the initiative outright, so it fits when you're fairly sure the other person will agree.
Examples
駅の前で会いましょう。
Let's meet in front of the station.
もう遅いですから、帰りましょう。
It's late already, so let's head home.
一緒に昼ご飯を食べましょう。
Let's have lunch together.