保たもつ

godan verb (-tsu), transitive verb

keep; maintain; preserve

Transitive: actively keep something in a certain state, preserve it, or maintain it over time. Often used with abstract nouns like 健康, 秩序, 関係.

• 健けん康こうを保たもつために、毎まい日にち運うん動どうしている。

  I exercise every day to maintain my health.

• 両りょう国こくは長なが年ねん友ゆう好こう関かん係けいを保たもってきた。

  The two countries have maintained friendly relations for many years.

godan verb (-tsu), intransitive verb

last; keep; be durable

Intransitive: something lasts, endures, or stays in good condition without external effort. Common for food, goods, or abstract states.

• このパンは冷れい凍とうすれば一いっヶか月げつは保たもつ。

  This bread will keep for a month if frozen.

• 彼かれの集しゅう中ちゅう力りょくは長ながくは保たもたなかった。

  His concentration didn't last long.