1)
What did Achav say that he can do, and what can he not do?
1.
Radak: I cannot let you search our houses and take Kol Machmad and the good wives and children. The first matter you sent, to be under your kingship, that I will do.
2.
Malbim: "Li Hem" (we are under your authority), I can do. "Li Titen" (I should give to you), I cannot do.