Rule 1: 1. The dual pronouns هُمَا and أَنْتُمَا
To the pronouns you know, add هُمَا they two and أَنْتُمَا you two. Each serves for masculine and feminine alike. As subject of a nominal sentence it takes a dual predicate; as subject of a verb it takes the dual verb forms from lesson 32. You already know the matching suffixes ـهُمَا and ـكُمَا.
هُمَا فِي السُّوقِ.
humā fi-s-sūqi
They (two) are in the market.
هُمَا بِنْتَانِ صَغِيرَتَانِ.
humā bintāni ṣaghīratāni
They are two little girls.
أَنْتُمَا وَلَدَانِ طَيِّبَانِ.
antumā waladāni ṭayyibāni
You are two good boys.
أَيْنَ أَخِي وَأُخْتِي؟ هُمَا يَحْمِلَانِ السَّلَّةَ إِلَى الْبَيْتِ.
ayna akhī wa-ukhtī? humā yaḥmilāni-s-sallata ila-l-bayti
Where are my brother and sister? They are carrying the basket home.
هَلْ أَنْتُمَا اشْتَرَيْتُمَا الْعَسَلَ؟
hal antuma-shtaraytuma-l-ʿasala
Did you two buy the honey?