These are the six third-person passive heavy-nūn positions:
Word / formMeaning / explanation
لَيُفْعَلَنَّthird masculine singular
لَيُفْعَلَانِّthird masculine dual
لَيُفْعَلُنَّthird masculine plural
لَتُفْعَلَنَّthird feminine singular
لَتُفْعَلَانِّthird feminine dual
لَيُفْعَلْنَانِّthird feminine plural
They cover masculine singular/dual/plural and feminine singular/dual/plural. The ḍamma of the passive prefix remains. The same rules of masculine plural wāw deletion, dual alif retention, and feminine-plural separating alif continue to apply.