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Section 1
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Section 2
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Section 3
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Section 4
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Section 5
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Test
〜になる・くなる
Usage 1:

イ-Adjective:change い to く and add なる in the end.
ナ-Adjective + になる
Noun + になる
Meaning of Usage 1:
You use 〜になる・くなる when you want to express the result of change. |
Examples of Usage 1:
彼は医者になりました。 He became a doctor. アニメが好きになりました。 I came to like anime. 彼女はかわいくなりました。 She became cute. 水は氷になりました。 The water turned into ice. 痛みがなくなりました。 The pain has gone. 彼は有名な俳優になりました。 He became a famous actor. |
Usage 2:

Dictionary Form of Verb + こと + になる
Meaning of Usage 2:
You can use 〜になる to express that you have decided to do something because of some reasons.(Sometimes you don’t like it but you have to make this decision.) |
Examples of Usage 2:
今度国に帰ることになりました。 I have decided to come back to my country this time. 友人の結婚式にアカペラで歌うことになりました。 I’m going to be singing a cappella at a friend’s wedding ceremony. 昨日トムに告白されて、付き合うことになりました。 Tom confessed his love to me yesterday and we have started dating. 経営者は会社の代理として一週間に一回海外へ出張することになりました。 It was decided that the manager, as the company’s representative, would go overseas on business trips once a week. 私は学祭の片付けの際に学校の鍵を紛失して始末書を書くことになりました。 I lost a school key when I was cleaning up after the school festival and I was then required to write an apology letter. |
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Forms of なる? Past tense, future tense etc.
It is a -ru verb.
Past tense: なりました or short form: なった
Future tense would be the same as present tense: なります or short form なる
Te- form: なって
Potential form: なれる
I hope this helps!
Thanks!
What’s the difference between になる and 決める? Does it have to do with how the sentence is built or are those used in different contexts?
決める:you decide something on your own
になる:you have to make the decision because of some reasons.(sometimes you don’t want to do it)