جَلْسَةً — once, accusative by fatḥa.
جَلْسَتَيْنِ — twice, accusative by yāʾ (dual).
جَلْسَاتٍ — several times, accusative by kasra (sound feminine plural).
All three are absolute objects. Number and visible case marker differ.
Opening interactive controls...
One, Two and Several Times
The Accusatives: Al-Mafʿūl al-Muṭlaq
جَلْسَةً — once, accusative by fatḥa.
جَلْسَتَيْنِ — twice, accusative by yāʾ (dual).
جَلْسَاتٍ — several times, accusative by kasra (sound feminine plural).
All three are absolute objects. Number and visible case marker differ.