"Estudiar"
English: "study hall" Spanish: "hora de estudio"
they study→ ellos/ellas estudian
"You all don't study" in Spanish is "Usted no todos estudian."
Estudiar
Voy a estudiar.
The word me in spanish is mi. The word word for you is tu.
Esdiar is not a word in the Spanish language. It could though, be a typo for Estudiar which is the Spanish word for "to study".
The word "in" in Spanish is spelled "en."
Sierra is the Spanish word for "mountain" or "mountain range". It already is a Spanish word, but to say it as a Spanish word, remember to roll the "rr".
5 in Spanish is "cinco". You cannot say "five" because that is an English word, not Spanish.
That is not a word in Spanish