Questions & Answers about Мне нечего делать, поэтому я гоняю мух.
Why do we use the multidirectional verb гонять instead of the unidirectional гнать for chasing flies?
Flies buzz around erratically, so chasing them is a random, aimless action happening in multiple directions. You use гонять (multidirectional) for this kind of disorganized chasing. If you were driving or herding something directly to a specific destination in one motion, you would use гнать (unidirectional).
Why is the word for flies мух instead of мухи?
Гонять is a transitive verb, meaning its direct object must be in the accusative case. Because муха (fly) is grammatically animate, its accusative plural form matches its genitive plural form (мух). If it were an inanimate noun, it would match the nominative plural (мухи).
In the phrase Мне нечего делать, why is the pronoun мне in the dative case?
This uses a common impersonal construction: a negative pronoun starting with не- plus an infinitive verb. It translates to "there is nothing to [verb]". In these impersonal sentences, the person experiencing the situation is placed in the dative case (мне).
What is the difference between нечего and the more common word ничего?