kanojo wa juudenki o itsumo kaban ni irete oku.

She always keeps a charger in her bag.

Breakdown of kanojo wa juudenki o itsumo kaban ni irete oku.

• は: topic particle
• に: destination particle
• を: direct object particle
• 入いれる: to put

Questions & Answers about kanojo wa juudenki o itsumo kaban ni irete oku.

What does the form 入れておく mean here?

〜ておく means “do something in advance and leave it that way (for convenience/just in case).” So 入れておく is “to put it in and keep it there (prepared).” It’s not just “put,” but “put and leave/keep,” often with a sense of preparation.

How is 入れておく different from just 入れる?

• 入れる: simply “to put/insert.”
• 入れておく: “to put (now) so it will be there later,” implying preparation or maintaining that state.

What’s the difference between 入れておく, 入れている, 入っている, and 入れてある?

• 入れておく: the actor proactively puts it in and leaves it there for future convenience (habit or preparation).
• 入れている: transitive progressive/habitual; “(she) keeps it there” as her ongoing habit.
• 入っている: intransitive resultant state; “it is in there” (focus on location, no actor).
• 入れてある: resultant state from someone’s intentional action; “it has been put (and is there).” Typically used like かばんに充電器が入れてある (don’t usually name the agent).

Why is を used after 充電器?

Because 入れる is a transitive verb and 充電器 is the direct object: you “put a charger” into something, so the object takes を.