"You read a book."
Translation:Tú lees un libro.
formal would be for those of respect: elders, boss, royalty, even strangers as respectful and the like
eric- but the voice said tú lees , so, the sentence must be present tense. I would agree if there was no voice and the sentence to translate would be in English, at this moment, no way to see if read is present or past.
How is a book masculine? And how is milk feminine? Ach, someone help me understand!
Umm yeah this is a difficult concept for English speakers. Nouns in Spanish all are either masculine and feminine, and you kinda just have to remember it. The main reason why you need to remember it is so that you know whether to say "el/la" in front of it and to make adjective agree with it. Here's a link that might help! http://www.spanishdict.com/topics/show/1
I read=yo leo, you read=tú lees, he/she/you (formal) reads=él/ella/usted lee, we read=nosotros leemos, they/you all read= ellos/ellas/ustedes leen
I keep leaving the "S" of of lee, really? Maybe I'll just say Como se decir! :-)
You want to mean "¿Cómo se dice?"? Lees is for tú, and lee is for él/ella/usted.
When do you use una, and when do you use un? I thought una was for a, and un was for an?
Nope, "un/una" can be either "a" or "an". You choose the correct indefinite article by looking at the noun that follows it and matching the noun in number and gender. These links have more information about this: http://www.spanishdict.com/topics/show/6 http://www.studyspanish.com/lessons/defart1.htm
Actually, "leias" was not preferred, when DL decided your answer was wrong it picked another "correct" answer to show you. Even though you are not working with vosotros endings it decided it was a good idea to show you that as a possible correct answer. It dinged me for using the usted form that for some reason has been left off the list of correct responses. Considering the size of the database with which they work Viva el DL!
How do you guage formality? How do you know when to use tú and usted? This seems arbitrary during the lesson