Breakdown of Мой брат работает в известном университете.
брат
brother
мой
my / mine
работать
to work
в
in / to (direction)
известный
famous
университет
university
Questions & Answers about Мой брат работает в известном университете.
Why does the adjective известном end in -ом?
It is in the prepositional case because it describes a location following the preposition в (in/at). The dictionary form is известный. In the prepositional case, masculine adjectives usually take the -ом ending, so it becomes известном to match the masculine noun университете.
Why does университет end with an -е here?
Because it shows the location where the action happens. The preposition в (in/at) requires the prepositional case for locations. To put a regular masculine noun ending in a consonant (like университет) into the prepositional case, you simply add an -е to the end, making it университете.
Why doesn't Мой change to the prepositional case too?
Cases apply to specific words based on their role in the sentence, not the whole sentence at once. Мой брат (My brother) is the subject, the one doing the action, so it stays in the nominative (basic) case. Only the phrase describing the location (в известном университете) changes to the prepositional case.
How would I change this sentence to say 'in MY famous university'?
You would need to change Мой (my) into the prepositional case so it matches the location. The prepositional form of Мой for a masculine noun is моём. The new location phrase would be в моём известном университете.
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