جَلَسْتُ خَلْفَكَ سَاعَةً
Translation: I sat behind you for an hour.
جَلَسْتُ: verb and subject.
خَلْفَكَ: accusative locative adverbial in iḍāfa.
سَاعَةً: accusative time adverbial.
This is an added example showing two different adverbials with one verb.
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Al-Mafʿūl Fīhi: Adverbials of Time and Place
جَلَسْتُ خَلْفَكَ سَاعَةً
Translation: I sat behind you for an hour.
جَلَسْتُ: verb and subject.
خَلْفَكَ: accusative locative adverbial in iḍāfa.
سَاعَةً: accusative time adverbial.
This is an added example showing two different adverbials with one verb.