If your using it as your first word in your sentence... Yes you do, but if yoour not no.
It is not necessary to capitalize the word "yo".
Yes, you capitalize Spanish because it is a language and culture.
No you do not.
Nope!
The Spanish word for October is octubre. (Many languages do not capitalize month names.)
You would never capitalize a word because of the comma. Onlt capitalize it if it's a word that is always capitalized like France, I, Tuesday or Frederick.
Greek should always be capitalized.
Only if it is the first word in a sentence.
You would capitalize Baltimore by making the first letter of the word uppercase - "Baltimore."
You always capitalize proper names, and Spanish is a proper name for someone or something from Spain.
Always as it is the name of the language. It is a proper noun, which you must always capitalize.
It is always capitalized because it is a propernou n.