願望・依頼N5
〜ましょうか
shall I...?
Structure
V-ます形（語幹）+ ましょうか
Explanation
Expresses an offer to help, asking if the listener wants the speaker to do something.
Examples
荷物を持ちましょうか。
Shall I carry your luggage?
窓を閉めましょうか。
Shall I close the window?
Note
Unlike 「〜ましょう」, this is the speaker offering to do something for the listener.