كَانَتِ الْمُعَلِّمَاتُ حَاضِرَاتٍ
Translation: The women teachers were present.
كَانَتْ: past defective verb with feminine tāʾ (linking vowel shown in continuous recitation).
الْمُعَلِّمَاتُ: nominative ism kāna with ḍamma.
حَاضِرَاتٍ: accusative khabar kāna, marked by kasra for a sound feminine plural.
Do not call this predicate genitive just because it has kasra; here it is a valid accusative marker.