在They live in the country一句中，动词复数形式live与复数主语they一致。

In the sentence 'They live in the country', the plural form of the verb 'live' is in agreement with the plural subject 'they'.

《牛津词典》

在韩语中没有复数形式的动词，所以这也很难。

There's not really a plural form of verbs in Korean, so then again it's also difficult.

youdao

这个动词应该用复数形式。

The verb should be in the plural.

《牛津词典》

There's not really plural form of verbs in Korean, so then again it's also difficult.

韩语中真地没有动词复数形式，所以这一点也比较难。

韩国人经常犯的失误 - SpeakingMax英语口语达人