NDB operates between MF and VHF
Nope, ADF operates on LF and MF, 200 to 1699 kHz in my GA aircraft, and 100 to 1750 in my old mil. You have HF (3 to 30 mHz) between MF and VHF (30 to 300 mHz), then UHF (300 MHz to 3 GHz).
And about TACAN/DME having a corresponding VHF frequency?
I'm afraid outside of the military I've never seen a cockpit whereby you can tune UHF, either com or nav. I said,
a TACAN channel number has a corresponding VHF frequency. ie 84X=113.7
I did not say, nor I think, imply, that the DME or TACAN
OPERATED on VHF. You tune a VHF frequency in the box, which then talks to the ground station per this table, and receives a reply on a different frequency, both being UHF.
Instrument Landing System (ILS) Frequencies - The RadioReference Wiki