"You don't have the money."
Translation:Tú no tienes el dinero.
I was asked to write "You don't have the money" in Spanish. I put "no tienes el dinero" and was marked wrong. I was told that I used the wrong word, and it should be "No tienes tú dinero." I am confused. Is that the same as saying "Tú no tienes dinero"? The pronoun should not be necessary, and what is wrong with having "el dinero"? I'm going to report it.
"Tengo" is first person singular, so it means "I have". "Tienes" is second person familiar singular, so it means "you [familiar] have".
You use "tengo" with "yo" (although you don't have to use "yo", because "tengo" tells you that the subject is "yo"). And you use "tienes" with "tú" (although, similarly, you don't have to use "tú" because "tienes" tells you that the subject is "tú").
If you are asking how we know whether to use tengo or tienes, "tengo" means "I have" and "tienes" means "you (familiar, singular) have".
Another issue addressed in the discussion here is that if you are asked to translate English into Spanish, and the English has "you", there often is not a way to tell whether it's singular or plural, or familiar or formal. Sometimes the context will help (for example, if the sentence addresses someone as "Sir", the "you" would be singular and formal). But if there is no way to tell, you get to choose which "you" to use. I will say that Duolingo seems to use the singular familiar most, probably because it is what you would use in conversations with friends.
That should be fine as long as you put the accent on "tú", but it's not the only correct answer. Other correct answers are "No tienes el dinero" and "Usted no tiene el dinero".
It looks like there were some problems with this question, and some of the other correct answers were not accepted a year ago--I don't know whether that has been fixed.
"Tú no tienes dinero" would be "you don't have money". This is one example where the "the" in English does correspond to "el" in Spanish. "You don't have money" means that you are poor. "You don't have the money" refers to not having specific money or an amount of money necessary for something.
For example, you want to buy a Tesla but you don't have the money. Or in a movie, where someone is supposed to deliver money (ransom, money from drug deals) to a bad person but doesn't have it, the bad person might say "You don't have the money" (or "no tienes el dinero") and then do something, well, bad.