جَلَسْتُ خَلْفَكَ
Translation: I sat behind you.
جَلَسْتُ: past verb, with “tu” as subject.
خَلْفَ: accusative locative adverbial and first term of iḍāfa, relating to the sitting.
كَ: attached pronoun as genitive second term.
Khalfa answers “where did the sitting take place?”.
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Al-Mafʿūl Fīhi: Adverbials of Time and Place
جَلَسْتُ خَلْفَكَ
Translation: I sat behind you.
جَلَسْتُ: past verb, with “tu” as subject.
خَلْفَ: accusative locative adverbial and first term of iḍāfa, relating to the sitting.
كَ: attached pronoun as genitive second term.
Khalfa answers “where did the sitting take place?”.