[JLPT grammar] nai-form(~ない) is conjugated in the same way as i-adjectives

Today I am going to share the homework correction quoted from my JLPT course!
The student’s sentence is not correct. Can you find the mistake?


[Student’s sentence]





[My correction]

As an adult, I no longer play games.


Negative changes for ようになる take the form 〜なく+なる.
That’s because nai-form(~ない) is conjugated in the same way as i-adjectives.

しない is a nai-form of する
=しなくなりました; past tense, polite style

ように is only added before 〜なる(become) when connecting the verb dictionary-form to なる.

The child has started to eat vegetables.

As I got older, I stopped eating meat.

My son became a college student and started riding a motorcycle.

Since living in Tokyo, I no longer drive a car.


I hope my explanation helps you. 😊


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