Breakdown of Наш друг работает в магазине.
друг
friend
наш
our (наш, наша, наше)
работать
to work
в
in / to (direction)
Questions & Answers about Наш друг работает в магазине.
Why does the word for store end in -е (магазине)?
This is the Prepositional case, which we use to talk about locations. The dictionary form of the word is магазин. Because it is a masculine noun ending in a consonant, we add -е to the end to say "in the store" (в магазине).
Why do we use the preposition в here instead of на?
We generally use в (meaning "in" or "inside") for enclosed spaces, containers, and buildings. Since a store (магазин) is a physical building you go inside, we use в.
How do we know to use работает instead of another verb form?
The subject of the sentence is наш друг (our friend), which acts as a "he" (он). The infinitive (dictionary form) of the verb is работать (to work). To make it match "he", we drop the -ть and add the ending -ет.
Why do we use наш instead of наша or наше for "our"?
In Russian, possessive words like "our" must match the gender of the noun they describe. Друг (friend) is a masculine noun, so we use the masculine form наш. If we were talking about a female friend (подруга), we would have to use the feminine form: наша подруга.