保険

How it works

に (in) marks what you belong to here — 旅行保険りょこうほけん (travel insurance). The verb is 入るはいる (enter, join), but it shifts into the て (te-form) plus いる (be), giving 入っていますはいっています (am enrolled in). That 〜ている (ongoing state) form describes a continuing state, not a one-time action, and ます (polite) keeps it polite.