Japanese grammar
What does ～さえ～ば (sufficient condition) mean? Japanese grammar N2
～さえ～ば (sufficient condition) means as long as just… (a sufficient condition).
| Level (estimated, JLPT framework) | N2 |
|---|---|
| Structure | N + さえ + Vば Vます形 + さえすれば い形（く）+ さえあれば |
| Romaji | sae ba |
| Meaning | as long as just… (a sufficient condition) |
Forming it
| Noun | お金 → お金さえあれば |
|---|---|
| Verb | 合格する → 合格しさえすれば |
| i-adjective | 安い → 安くさえあれば |
How to use it
States the MINIMUM and only condition needed: as long as A is present/done, everything will be fine.
- 「AさえBば」 = as long as A, then B. 「さえ」 emphasizes that nothing more is needed: 「お金さえあれば、何でもできるわけではない」.
- The verb must be split apart: 「合格しさえすれば」 (masu-stem + さえ + する conjugated to ば) — this is the trickiest point of the pattern.
- The second clause MUST be conjugated with 「ば」; do not confuse this with 「さえ」 meaning "even" (「子どもさえ知っている」).
Examples
天気さえよければ、明日は出発できます。
As long as the weather is good, we can depart tomorrow.
この試験に合格しさえすれば、卒業できる。
As long as I pass this exam, I can graduate.
Keep in mind
- The following clause must be conjugated with 「ば」.
- Verbs use the frame 「Vます形＋さえすれば」.
Common mistakes
-
Wrong全科目で満点を取りさえすれば、卒業できる。
As long as you get a perfect score in every subject, you can graduate.
Correct全科目で満点を取れば、卒業できる。
「さえ」 emphasizes a MINIMAL/easy-to-meet condition; "getting a perfect score in every subject" is an extremely high bar, which contradicts the nuance of さえ that "just a little is enough."
-
Wrongお金さえあると、何でも買える。
As long as you have money, you can buy anything.
Correctお金さえあれば、何でも買える。
The conditional clause must be conjugated with 「ば」.
Exam tips
- 「さえ～ば」 = as long as…; for verbs use 「masu-stem + さえすれば」.