ば
(Ba)
once (X happens).
Connection rules
- ＋ひとたび + V plain + ば / と / たら + main clause.
- ＋'Once X, Y inevitably' — emphasizes that one instance is sufficient.
- ＋Often followed by ば, と, or たら.
Examples
1.
ひとたび決めたら、最後までやり遂げる。
Hitotabi kime tara, saigo made yaritogeru.
Once I've decided, I see it through to the end.
「once (X happens)」
2.
ひとたび約束したら、守るべきだ。
Hitotabi yakusoku shi tara, mamoru beki da.
Once you've promised, you should keep it.
「once (X happens)」
Practice
Once he opens his mouth, he does nothing but complain.
彼は___、不満ばかり言っている。
Romaji also accepted