Breakdown of او جامد را با اسید در آزمایشگاه شیمی مخلوط نکرده بود.
او
he/she
بودنbudan
to be
درdar
in
باbâ
with
Questions & Answers about او جامد را با اسید در آزمایشگاه شیمی مخلوط نکرده بود.
Why does the verb end with نکرده بود instead of just نکرد?
نکرده بود is the negative Past Perfect tense, which translates to "had not mixed". It is used for an action completed further in the past. If we used the simple past نکرد, it would simply mean "did not mix". You form the Past Perfect with the past participle (نکرده) plus the past tense of "to be" (بود).
How do we know to translate جامد را as "the solid" rather than just "a solid"?
The word را is the specific direct object marker. Because جامد (solid) is followed by را, it tells us this is a specific object ("the solid" or "that solid"), not just a general or unknown one.
How are "chemistry" and "laboratory" connected in this sentence?
They are connected by the ezafe, an invisible "e" sound. In Farsi, a noun modifying another noun comes after it. So "chemistry lab" is written as آزمایشگاه شیمی and pronounced "āzmāyeshgāh-e shimi".
What is the root of the verb "to mix" used here?
The infinitive is the compound verb مخلوط کردن. In compound verbs, the first word (مخلوط) stays the same, while the helper verb (کردن) changes to show the tense. Here, it takes the negative prefix نـ and the past perfect form to become مخلوط نکرده بود.