> 七三年にはテレビ番組になり、今も毎週続いています。

I understand the sentence to be:

> In '73 it became a television show, and today it continues every week.

My question is about the form of the verb なる in the above sentence - why is it
"なり" here? When is the stem form of the verb used in this way?
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2018-06-22T19:46:32.783
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2018-06-22T20:10:18.990
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question
conjugations renyōkei
Question about "nari"
> 「七三年{ななじゅうさんねん}にはテレビ番組{ばんぐみ}に **なり** 、今{いま}も毎週続{まいしゅうつづ}いています。」

As you know, both verbs and adjectives conjugate in Japanese. 「なり」 is the
連用形{れんようけい} ("continuative form") of the verb 「なる」.

This sentence talks about two events -- 1) "It became a TV program." + 2) "It
has continued to today."

「なる」 is the terminal form; therefore, it cannot be used mid-sentence to
connect itself to another verb phrase. Instead, you must use the continuative
form 「なり」.

Read here and see how 「だ」 becomes 「で」 mid-sentence:

[How to parse
中国人で日本語が話せる方は、お電話ください。](https://japanese.stackexchange.com/questions/24917/how-
to-
parse-%e4%b8%ad%e5%9b%bd%e4%ba%ba%e3%81%a7%e6%97%a5%e6%9c%ac%e8%aa%9e%e3%81%8c%e8%a9%b1%e3%81%9b%e3%82%8b%e6%96%b9%e3%81%af-%e3%81%8a%e9%9b%bb%e8%a9%b1%e3%81%8f%e3%81%a0%e3%81%95%e3%81%84)
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answer