Breakdown of در حالی که محرکهای حسی را بررسی میکنند، هیچچیز نمیشنوند.
شنیدنshenidan
to hear
راrâ
definite direct object marker
هیچچیزhich chiz
nothing
بررسی کردنbarresi kardan
to check / to inspect
Questions & Answers about در حالی که محرکهای حسی را بررسی میکنند، هیچچیز نمیشنوند.
The current lesson is about using hich as an adverb meaning 'not at all.' Is that how it's being used here?
Not exactly, but it follows the exact same double-negative rule. Here, hich modifies chiz (thing) to mean 'nothing' (هیچچیز). Just like when you use hich alone as an adverb, using it to build a pronoun requires the verb to be negative. That is why the sentence uses the negative verb نمیشنوند (they do not hear).
Why doesn't هیچچیز (nothing) have the direct object marker را after it, since it's the object of 'they hear'?
The marker را is strictly used for definite or specific direct objects. Because هیچچیز represents the absence of a thing, it is inherently indefinite (you aren't referring to a specific 'nothing'). Therefore, it drops the را.
در حالی که (dar hâli ke) ends with که. Why doesn't it trigger the subjunctive mood for the verb that follows it?
While many conjunctions ending in که require the subjunctive, در حالی که (while / in the state that) describes an action that is actively and factually happening in reality. Because it describes a real, ongoing state rather than a hypothetical or desired one, it takes the indicative mood, giving us the present continuous بررسی میکنند.
In the phrase محرکهای حسی را (moharrek-hâ-ye hessi râ), why does را come at the very end rather than immediately after the noun محرکها?