Breakdown of آنها گردش فصلها را مطالعه کردند.
آنها
they
راrâ
definite direct object marker
مطالعه کردنmotâle'e kardan
to study / to read (books, articles, etc.)
گردشgardesh
circulation / turning
فصلfasl
season
Questions & Answers about آنها گردش فصلها را مطالعه کردند.
How is the action noun گردش formed in this sentence?
It is built from the present stem of the verb گشتن or گردیدن (to turn/revolve/stroll). The present stem is گرد. By adding the suffix ـِش, it creates the noun گردش, meaning 'turning', 'circulation', or 'cycle'.
I have seen گردش used to mean 'going for a walk'. How does it mean 'cycle' here?
The core meaning of the root verb involves turning or moving around. While گردش often means 'strolling' (moving around for leisure), in nature or science contexts like گردش فصلها (the cycle of the seasons) or گردش خون (blood circulation), it refers to a continuous rotation or cycle.
Why does the object marker را come after فصلها instead of right after گردش?
The direct object of the verb is not just the word 'cycle', but the entire phrase گردش فصلها (the cycle of the seasons), which is connected by an invisible ezafe. The marker را must always go at the very end of the complete noun phrase.
Why use the compound verb مطالعه کردن instead of just خواندن (to read/study)?
While خواندن can mean 'to study' (like being a university student) or 'to read', مطالعه کردن specifically means to research, observe closely, or analyze a subject. For scientific observation like studying the seasons, مطالعه کردن is the more precise and natural choice.
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