I believe that it means `I have to become strong` but I don't really know how
the grammar works in the sentence. I know it's using `強い` and I guess `なる` in
potencial form

Pleas explain to me how this works
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2020-11-20T02:11:09.547
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2020-11-20T02:24:25.510
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question
i-adjectives potential-form
僕が強くならなきゃ　from 月の大きさ　song