no difference in pronunciation between 'marchez' and 'marcher' ... why is 'marcher' wrong? "To walk during your lunch time"!
Marchez is directed at you, as in "Marchez-vois pendant..", while Marcher is just infinitive "to walk".
I think the point is, when spoken there is no (or little?) audible difference between the two.
I guess you're right, but in everyday language, it's better to assume that what you're hearing is a complete and grammatically correct sentence. The infinitive form is not a complete sentence (like in English) and is way less likely to be used.
I think it is an injustice to lose a heart for not "assuming" correctly.
See my reply above. That would be a translation for "marcher", but not a complete sentence.
Duo doesn't always give us a complete sentence, so there's no reason to assume this would be one. Am I correct in thinking this is like the implied "you" in English? For example: "(You) walk during your lunch hour." One wouldn't say "(You are) walking during your lunch hour", because it's more of a command or suggestion to "you".
Exactly. Here you have an imperative form, which is built without using the pronoun.
Haha I live in Quebec and I always get phrases with lunch wrong because here "dejeuner" is more commonly used for "breakfast" instead of lunch. :P
"Dîner", and we use "Souper" for the evening meal. A lot of confusion arises when we speak with French people.
Since "heure de déjeuner" is singular, the use of "votre" matches the singular thing referred to. One would not mix the polite verb form (marchez) with the familiar "ton". It's all explained here: http://french.about.com/od/grammar/a/adjectives_possessive.htm
"marchez" is conjugated for "vous" which is not necessarily plural. Vous can be either singular or plural depending on the context. We use "votre" here because it is the "vous" form of "your" and "heure de dejeuner" is singular.
You are quite right, of course. That was posted so long ago!! I have edited my remarks.
Does marchez also mean work sometimes? Like il n'est pas marche- it doesn't work??
Am I misunderstanding the sense of marcher as "to work"? Why is "Work during your lunch hour" not accepted ?
"Walk during your lunch hour" is very situation specific and hardly common.