Now the full grid becomes easy:
CountPluralDualSingularGroup
3they (m.)they two (m.)heMasculine Ghaa'ib
3they (f.)they two (f.)sheFeminine Ghaa'ib
3you all (m.)you two (m.)you (m.)Masculine Haadhir
3you all (f.)you two (f.)you (f.)Feminine Haadhir
2we—IMutakallim
Memory trick: 6 Ghaa'ib + 6 Haadhir + 2 Mutakallim = 14.