Using the root نَصَرَ, the lesson gives these practice forms.
PluralDualSingularClass
مَنَاصِرُمِنْصَرَانِمِنْصَرٌSughraa
مَنَاصِرُمِنْصَرَتَانِمِنْصَرَةٌWustaa
مَنَاصِيْرُمِنْصَارَانِمِنْصَارٌKubraa
Use these as pattern-practice examples for recognizing the three classes.