What is the most common non English language in world?

Here's why:

* Number of speakers: Mandarin Chinese has the largest number of native speakers globally, with over 1 billion people.

* Official language: It's the official language of mainland China, Taiwan, Singapore, and several other countries.

While other languages like Hindi, Spanish, Arabic, and Bengali have significant numbers of speakers, Mandarin Chinese consistently ranks as the most spoken non-English language worldwide.