Questions & Answers about Počivao u miru, dragi prijatelju!
Why does this sentence use the past participle počivao instead of the imperative počivaj?
This is the optative mood, which uses the bare l-participle (without an auxiliary verb) to express a solemn wish, blessing, or curse. While the imperative počivaj is a direct command meaning 'Rest!', the optative počivao expresses a profound wish meaning 'May you rest'.
How would this phrase change if it were addressed to a female friend?
Because the optative mood relies on the l-participle, the verb must agree in gender with the subject. For a female friend, you would use the feminine singular participle počivala and update the vocative phrase: Počivala u miru, draga prijateljice!
Why does the word prijatelj change to prijatelju here, rather than taking the standard -e vocative ending?
It is in the vocative case because the friend is being directly addressed. While most masculine nouns ending in a hard consonant take the -e ending in the vocative, nouns ending in a palatal (soft) consonant like lj always take the -u ending instead.
Why doesn't the adjective dragi take a special vocative ending to match prijatelju?
For masculine singular definite adjectives (those ending in -i, like dragi), the vocative case is identical to the nominative case. Therefore, the form remains exactly the same, even though the noun it modifies takes the vocative -u ending.