مَرَرْتُ بِإِبْرَاهِيمَ — I passed by Ibrāhīm.
مَرَرْتُ: past-tense verb with its attached subject pronoun.
بِ: preposition.
إِبْرَاهِيمَ: genitive after bi-, but with a visible fatḥa in place of kasra because the name is a diptote.
A fatḥa does not by itself mean accusative: identify the grammatical governor first.
Opening interactive controls...
Diptote Causes — Foreign Origin and Its Conditions
مَرَرْتُ بِإِبْرَاهِيمَ — I passed by Ibrāhīm.
مَرَرْتُ: past-tense verb with its attached subject pronoun.
بِ: preposition.
إِبْرَاهِيمَ: genitive after bi-, but with a visible fatḥa in place of kasra because the name is a diptote.
A fatḥa does not by itself mean accusative: identify the grammatical governor first.