if ~ should
before ~ should
Structure
- Verb[る] + (の) なら + Verb[る] + で
- い-Adj + (の) なら + い-Adj + で
- な-Adj + なら + な-Adj + で
- Noun + なら + Noun + で
[AならAでB is used to express that in situation A, B is appropriate]
[The pattern often has a patronizing tone and nuance of dissatisfaction or annoyance that expectations were not met]
[なら〜で is used in situations where a parent, teacher, superior, or someone older instructs a minor or subordinate]
[Generally used with expressions of duty or obligation like なさい、方がいい、ください、べき and expressions like べきだった、はずだった、ばいいのに, and so on]
[Sometimes you can encounter たら/ば instead of なら, but those are more common in another A[たら/ば]A[た]でB pattern where, contrary to what you normally would expect from A, B is the case]