جَاءَ مَعْدِيكَرِبُ. — Maʿdīkarib came; subject, nominative with ḍamma.
رَأَيْتُ مَعْدِيكَرِبَ. — I saw Maʿdīkarib; object, accusative with fatḥa.
مَرَرْتُ بِمَعْدِيكَرِبَ. — I passed by Maʿdīkarib; genitive with fatḥa replacing kasra.
These are added teaching sentences illustrating the rule, not quotations from the book.