One feminine plural pattern is فُعْلَيَاتٌ. It shows a yāʾ related to the singular's final alif maqṣūrah and then the feminine plural ending -āt.
Word / formMeaning / explanation
كُبْرَيَاتٌgreater/bigger feminine entities.
صُغْرَيَاتٌsmaller feminine entities.
سُمْعَيَاتٌwomen characterised as hearing more; this form appears in the source exercise.
The -yāt sequence identifies this plural formation, whereas the next pattern uses an internal broken-plural change.