When talking about the language that you speak do capitialize word English?

Yes, you should capitalize "English" when referring to the language.

Here's why:

* Proper nouns: English is considered a proper noun because it refers to a specific language. Like any other language (French, Spanish, Mandarin), it's capitalized.

* Nationalities and ethnicities: English can also refer to a nationality or ethnicity, which are also capitalized.

Examples:

* "I speak English fluently."

* "She's an English citizen."

* "He has English heritage."

Let me know if you have any other grammar questions!