Article: Yo means "I" in Spanish. However, Spanish grammar dictates that it is not necessary use the personal pronoun in this context, so you can omit the word yo if you wish. In this context, te means "you" in Spanish.Te can either be the second word in the sentence or the first word, depending on whether you use yo. In this context, the word amo means love. Now you have written yo te amo or te amo, which both mean "I love you". Te amo is the romantic way of saying "I love you", therefore it should only be used when speaking or writing to a lover or spouse. It is a very serious and intimate way of saying "I love you", so it tends to be used less commonly than te quiero.

What is a summary?
Write the word yo. Write the word te. Write the word amo. Know when to use te amo.