Copy and pasting from another one of my comments:
You have to remember to conjugate your verbs. This is something that Duolingo doesn't teach you.
je mange tu mange il mange elle mange nous mangeons vous mangez ils mangent elles mangent
*ils = all males or mix of male & femaile. elles = all female.
http://french.about.com/library/verb/bl-verbconjugator.htm There are some basic rules you can follow (try searching french conjugation rules) but they don't necessarily apply to all verbs and you really just have to learn them all. Hope this helps.
Manger = to eat (1st group verb)---> 's' at the end of the verb is only added to 'Tu'
Je mange Tu manges Il mange Elle mange Nous mangeons (don't forget the (e) between 'g' and 'o') Vous mangez ils mangent elles mangent
There you go, mange and manges are only used for singular pronouns which are (je,tu,il, elle). While mange is used for (je,il,elle), "manges" is only used for (Tu) which means you (one person, singular you) Good luck :)
"du" is an partitive article, and is a contraction of "de + le".
It can be translated into:
"Tu manges du pain" :
"You are eating bread" (No article in English)
"You are eating some bread"
"You are eating some of the bread" (as: "part of the")
It differs from the definite article "le":
"Tu manges le pain." = "You eat the bread."
Here, the sentence is about "bread" ("pain", not "pomme").
You are right in the sense that if you eat some of the bread, you have to say "Tu manges du pain". (For "pomme" it would be "Tu manges de la pomme.")
If you eat the whole bread, you have to say "tu manges le pain." (For "pomme", it would be: "Tu manges la pomme".)
You are right in this case, where "du" is a partitive article, and means "some" or "some of the" (in English, this concept often translate without using an article).
- "Tu manges du pain" means "You are eating (some) bread".
But FYI, "du" can also be:
a preposition ("Je viens du cinéma." means "I come from the cinema")
a definite article ("Je parle du garçon." means "I am talking about the boy")
For more details, please have a look at the links below:
You have to use "de l'" before words:
- starting with a vowel (ex: "de l'eau" means "(some) water"), or
- starting with a mute "h" (ex: "de l'hémoglobine" means "(some) haemoglobin").
Note: for words that start with an "aspirate" h, you have to use "du" or "de la".
- "du hachis" means "(some) ground meat"
- "de la houille" means "(some) coal"
"bread" is a mass noun, which means that it designates "a noun denoting something that normally cannot be counted but that may be countable when it refers to different units or types, e.g. bread, sugar, coffee..."
This also means that this word usually comes without an article before, or is preceded by "some".
- You eat bread = Tu manges du pain. (in French, we use an indefinite article "du" (masc. sing.), or "de la" (fem. sing), des (masc/fem. plural)
- You drink (some) = Tu bois du café.
If you want to talk about one "loaf of bread", you would use a definite article say:
- You eat the (loaf of) bread = Tu manges le pain.
You answer "You eat somes breads" is wrong because it would translate to:
- Tu manges des pains.
- Tu manges différents types de pains.