The use of « les » as a direct object makes it so that the sentence would be "You are selling them." with the question "How much?" Therefore "How much do you sell them (for)?"
Also, since « les » is a direct object, suggesting "of them" puts the object in a prepositional phrase, making it an indirect object. The indirect object of them is « leur, » so that translation would not make sense.
100% sure. If you say Combien de pommes vendez-vous?, that means "How many apples do you sell/are you selling?" En is the génitif pronoun, so it can replace nouns when they are used in this quantitive sense (i.e. with de), e.g.
- how many of the apples do you sell?
- how many of them do you sell?
- combien de pommes vendez-vous?
- combien en vendez-vous?
As said in another answer, that would be "Combien en vendez-vous?". http://french.about.com/od/grammar/a/pron_adverbial_2.htm
One thing I've noticed (and usually forget when answering) when the speaker pronounces a connected phrase like vendez-vous, she says it all together (in the slow version). If it were "vins de vous", she would say each word separately and slowly (in the slow version). As it is, she says it quickly, so she gives us a hint in that way that the phrase is all together, as in vendez-vous.
the pronoun "les" is a direct object. In your construction, "to them", you would need an indirect object pronoun. I think that is the pronoun "lui". Therefore, anyone looking at this sentence should be able to tell that the translation of "les" would be "them", not " to them" or "for them". However, I should mention that I didn't get that until I translated it incorrectly!
Make up a flash card for all the regular, direct object, indirect object, reflexive and stressed pronoun forms. Keep it with you when working on French. After referring to it a few times you will soon start to remember the common ones right away.
Of course, you have to be crystal clear what the different forms mean in English. (Well, maybe that won't help so much with stressed pronouns as they seem to have some additional meaning in French)
I think you're right about "eux," but I'm not sure. It's definitely not "lui" as I stated because lui is singular . As far as direct and indirect: "I read the letter." In this sentence , "letter" is the direct object of the verb. "I read it." In this sentence "it" is the direct object of the verb. "I read the letter to him." In this sentence, "him" is the indirect object of the verb. "I read him the letter." Here, "him" is the indirect object of the verb. I hope this helps.
Yes, they are getting harder.
EG: if you don't have a thorough grasp of the rules of direct and indirect object pronouns in English, it will make it hard for you to remember the patterns for the same in French. And it will be even harder to remember the exceptions.
If you live in a French speaking area where you can speak and hear it every day, you can just count on getting familiar with how things should sound. But if you are learning from the Duo system which relies mostly on reading and writing, then you have to get right down into the workings of the language.
Pronoun management in French is different from English so Duo students eventually have to start learning the rules to make much progress.
I understand that's how it works for French. For example: "vous dansez" (you dance) becomes "dansez-vous" (do you dance). However, what threw me off here was the presence of "les" in "vous les vendez". Why did it follow "vendez" and end up in front of "vous"? Is it just a rule in French that the pronoun follows the verb when it inverts (e.g. [les vendez]-vous)?
Sorry if this is messy/hard to understand. I couldn't think of a better way to phrase it.
What about les? Good question. The correct order is les vendez-vous as in the example given. Vendez-vous because one of the available interrogative forms reverses the subject/verb order as discussed.
Les is placed in front the verb/subject because it is the direct object of the verb and is therefore required to be placed in front of the verb (in French). That is how you can tell it's the direct object. Les + verb = direct object = them. Les + noun = article modifying noun = the. This is true of declarative as well as interrogative statements.
Hope this helps.