ばよかった (日本語能力試験 N4)

「ばよかった」の情報

ばよかった is a common expression used when someone regrets that something has not been/was not done. It is a pairing of the conjunction particle ば, and the past form of the い-Adjective, 良(い)い (remembering that conjugations of いい use よ, and not い). This construction is often translated to 'I wish I did (A)', or 'I should have done (A)'.
ばよかった is used after verbs, so requires the standard ば conjugation, before adding よかった.

サービスエリアが一(ひと)つもないじゃないか。高速(こうそく)に乗(の)る前(まえ)にトイレに行(い)けばよかった。
There aren't any service stops, are there? I wish I had gone to the bathroom before we got on the highway.
今日(きょう)も残業(ざんぎょう)？昨日(きのう)は早(はや)く寝(ね)ればよかった。
I have to work overtime again today? I should have gone to sleep early last night.

As ば highlights hypothetical situations, ばよかった literally means that 'it would have been good if (A)', where (A) is the thing that the speaker wishes had happened.

Fun Fact

This grammar point is in direct contrast to ばいい, the non-past version, which is used to express 'it would be good if (A)'.

運転(うんてん)をしたくなかったら、電車(でんしゃ)で行(い)けばいい。
If you don't want to drive, it would be better if you went by train.

同義語

例文

次(つぎ)の電車(でんしゃ)を待(ま)てばよかったです。
I should have waited for the next train.
ゲームより勉強(べんきょう)をすればよかったです。
It would have been better to study rather than play games.
天気予報(てんきよほう)を見(み)ればよかったです。
I should have looked at the weather forecast.
スーパーに行(い)った時(とき)牛乳(ぎゅうにゅう)を買(か)えばよかった。
I should have bought milk while I was at the store.
寝(ね)ないで、日本語(にほんご)を勉強(べんきょう)すればよかった。
It would have been better to study Japanese rather than sleep.
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「ばよかった」に関する文法ディスカッション

最近の返信 (合計27件)

Asher
That is correct, the point would disappear from the review queue. Definitely good timing on N3!
Marcus.W
Very good, thanks.
quufer
I found this grammar point mostly by accident (did a search on “かった”), and noticed that it’s listed as N4 Lesson 11… which doesn’t exist. What is the purpose of this point, if it’s not included in the standard path? Are there a lot of orphan grammar points like this?