جَلَسْتُ جَلْسَتَيْنِ
Translation: I sat twice.
جَلَسْتُ: past verb and subject pronoun.
جَلْسَتَيْنِ: dual absolute object; accusative marked by yāʾ.
Accusative case in the dual is shown by yāʾ, not by an ordinary singular fatḥa.
Opening interactive controls...
Number: Two Occurrences
The Accusatives: Al-Mafʿūl al-Muṭlaq
جَلَسْتُ جَلْسَتَيْنِ
Translation: I sat twice.
جَلَسْتُ: past verb and subject pronoun.
جَلْسَتَيْنِ: dual absolute object; accusative marked by yāʾ.
Accusative case in the dual is shown by yāʾ, not by an ordinary singular fatḥa.