Learning English with Cambridge - Did you know that some nouns only exist in plural form? 👖 They include the names of tools, instruments and articles of clothing which normally have two
![grammatical number - What is the etymology of a pair of trousers - English Language & Usage Stack Exchange grammatical number - What is the etymology of a pair of trousers - English Language & Usage Stack Exchange](https://i.stack.imgur.com/vsxiJ.png)
grammatical number - What is the etymology of a pair of trousers - English Language & Usage Stack Exchange
![Using the English phrase 'a pair of…..' in it's singular and plural form (English Grammar Lesson) - YouTube Using the English phrase 'a pair of…..' in it's singular and plural form (English Grammar Lesson) - YouTube](https://i.ytimg.com/vi/zQ4yJiIw5GI/maxresdefault.jpg)