if it is the case that; if (for the sake of)

とあれば means that if a special situation is true, then a certain response is natural, often a willingness to act. Attach it to a plain-form verb/adjective or a bare noun. It suits cases where one would do anything given that condition.

Examples

• 子供こどものためとあれば、どんな苦労くろうもいとわない。

  Kodomo no tame to areba, donna kurou mo itowanai.

  If it's for my child, I won't mind any hardship.

• 必要ひつようとあれば、すぐに駆かけつけます。

  Hitsuyou to areba, sugu ni kaketsukemasu.

  If it's necessary, I'll rush over right away.

Vocabulary in these examples

• 子供 child
• ある to exist (inanimate); to have
• どんな what kind of
• 苦労 hardship, trouble
• 必要 necessary, necessity

Related patterns · Condition and dependency

• 〜いかんで depending on
• 〜いかんにかかわらず regardless of
• 〜なくして without; if there were no
• 〜あっての made possible only by; thanks to
• 〜ばこそ precisely because