singular

In the sentence 'The cat is sleeping,' the word 'cat' is in the singular form.

(Chinese) 在句子“那只猫正在睡觉”中，“cat”这个词是单数形式。

Most English nouns become plural by adding an 's' to the singular version.

(Chinese) 大多数英语名词通过在单数版本后加“s”来变复数。