99800
As far as I know, 当たり前 is an adverb. How come in the following instances it's
used as the subject?

> あの日見た夕日 あの日見た花火 いつでも君がいたね  
>  **当たり前が** 幸せと知った ー「合唱曲・群青」

> 君がここにいなくなって **当たり前が** いなくなって ー「君の抜け殻」

I am a little puzzled by this usage of 当たり前 as the subject. The が cannot be
the contrast-particle が because that doesn't make sense either(plus one needs
to say XXだが and not XXが for 名詞 and 形容動詞). I think it must be the subject-
marker が. Can someone explain?
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2023-05-31T20:08:55.430
99797
2023-05-31T23:54:16.617
39855
question
grammar usage particle-が
The usage of 当たり前 as subject
<https://dictionary.goo.ne.jp/word/%E5%BD%93%E3%82%8A%E5%89%8D/>

当たり前 works as a noun as you can see from the 「名・形動」 listing. The relevant
definition is 2 here, I believe. They learned their 'normality', 'what they
took for granted' (something like that) was happiness, and then 'it' (implied
to be 君 with the verb choice **い** なくなって) disappeared.
CC BY-SA 4.0
2023-05-31T22:02:13.277
99800
2023-05-31T23:54:16.617
2023-05-31T23:54:16.617
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99797
answer