If your using it as your first word in your sentence... Yes you do, but if yoour not no.
Yes, you capitalize Spanish because it is a language and culture.
It is not necessary to capitalize the word "yo".
No you do not.
Nope!
Yes, according to most style guides, you should capitalize the first word of a subtitle even if it is an article, conjunction, or preposition. This helps maintain consistency and readability in your writing.
The word Internet is capitalized when referring to the global system of interconnected computer networks.
No, the word "federal" is only capitalized when it is part of a proper noun, such as "Federal Reserve" or "Federal Bureau of Investigation". Otherwise, it is typically lowercase.
You would capitalize the next word after a comma if it is the start of a new sentence or if it is a proper noun.
The Spanish word for October is octubre. (Many languages do not capitalize month names.)
Only if it is the first word in a sentence.
Greek should always be capitalized.
You always capitalize proper names, and Spanish is a proper name for someone or something from Spain.