you can find it in pinwheel forest after beating the elite 4
(.)(.)
You can't find swords dance as a TM in Pokemon Black
That is not a TM in Black
you cheat
It's not a TM in Pokemon Black, you can't get it.
Unfortunately, Hypnosis is not a TM in Pokemon Black or White. You would have to get it by leveling up.
You cannot get the TM/HM Whirlpool in Pokemon Black or White.
You can find it on route 18.
Wellspring cave
I don't think there is a TM for hypnosis in Pokemon Black or White.
You get the TM Ice Beam in the Great Chasm.
in lseihfoaisf
at the pokemart in iccirus city for 70000