N3 — outside your level filter
write + (past) + in the unlikely event — a bad outcome the speaker rates as improbable and plans for anyway
man'ichi kaita ra
in the unlikely event — a bad outcome the speaker rates as improbable and plans for anyway
meaning: in the unlikely event of writing
万一遅れたら、こちらの番号までご連絡ください。
man'ichi okureta ra, kochira no bangou made go renraku kudasai.
Please call this number in the unlikely event of running late. formal
万一の場合に備えて、非常用の水を用意してあります。
man'ichi no baai ni sonaete, hijouyou no mizu o youi shite arimasu.
We keep emergency water on hand in case the worst should happen. neutral