I'm brazilian, and in portuguese when we use 'to' is more like "para", and 'for', is more like "por". So, I was thinking, for example, in the sentence: I sing ___ you. If I sing in the place of a person, I could say "I sing for you."? And if I sing to a person I say "I sing to you." Is right this thought?
Thank you! I liked so much the video and the explaining! =D
Can I use in the same sentence the two words: to or for?