1)
Is "ha'Yeludim" a verb?
1.
Radak (Shmuel II, 5:14): No, it is an adjective, like Giborim.
2)
Were all these sons from David's wives?
1.
Radak (Shmuel II, 5:14): Yes. It says (above, 3:9) "Milvad Bnei ha'Pilagshim."
