ばいい - Grammar Discussion

ばいい

Structure
Verb[ ] + いい

Explanation
[Used to ask for/give emphatic advice/express good option. Common phrase: どうすればいい - what should ~ do/how do ~/ how can ~]

[Used to ask for/give emphatic advice/express good option/wishes(often with なあ). Also, can be used together with のに to express an advice/wish that regretfully differs from actual state/is impossible to realize. ]

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Is there anything wrong with 出ていくべきなんでしょう rather than 出ていけばいいんでしょう?

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It’s the strength of the advice; empathetic suggestion vs. obligation

違いを理解するために、再び文法ポイントの「ばいい」と「べき」を読み直せばいいです。
In order to understand the differences, it would be a good idea to re-read the grammar points for ‘ba ii’ and ‘beki’ again.

違いを理解するために、再び文法ポイントの「ばいい」と「べき」を読み直すべきです。
In order to understand the differences, you should re-read the grammar points for ‘ba ii’ and ‘beki’ again.

I think といいです grammar could work as well with a slightly different nuance as well. Then there is たらいい、てもいい and ほうがいい. I think these get a bit more confusing on nuance compared to above.

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