POKEMON BLACK TEAM HELP PLEASE?????

please help me here in black.

so, i have here a oshawott, lillipup, a pidove and a roggenrola. um im planning to get a sewaddle.

so wat im asking, id like to get some movesets for them all please?? haha, and PLEASE NO LEGENDARIES OR "HP GRASS" MOVE THINGS.

Well Oshawott's stats make for a decent mixed-attacker once it evolves up. I'm not sure what the most common builds are for Samurott, but I think running Surf, Ice Beam, Megahorn, and Night Slash would be a good build. However, since he can learn Swords Dance, it might be more useful to run all physical moves: Swords Dance, Aqua Tail, Megahorn, and Night Slash.
Lillipup eventually becomes a strong physical attacker with some decent defenses. Moves like Wild Charge, Crunch, Ice Fang, and Fire Fang, will be decent.
Pidove - another physical attacker, could work with U-Turn (or Hypnosis), Aerial Ace, Steel Wing, and Return.
Roggenrola - Explosion, Earthquake, Rock Slide (or Stone Edge), and Protect.
aaaand finally, Sewaddle! Swords Dance, Leaf Blade, X-Scissor, and Return.

I'm not a pro team-builder, but I'm thinking that if you try to get something close to that you'll do well. Is this team just for the Elite-4?

I would say teach them moves that get STAB (Same-Type Attack Bonus). What this means is that when a move is the same type as one type of the Pokemon, its power is increased. An example would be: Teach your Oshawott a lot of Water-type moves (I turn my Pokemon into STAB fighting machines).