Have we ever seen in Ca'NoN imperatives without -choH, and without -'eghmoH ? e.g. yItam, yIjot, yIQong, etc ?

yIn nI' yISIQ 'ej yIchep
Live long and prosper. (http://klingonska.org/canon/1996-08-rt.txt)

Dujeychugh jagh nIv yItuHQo'
There is nothing shameful in falling before a superior enemy. (TKW)

QaghmeylIj tIchID, yIyoH
Have the courage to admit your mistakes. (TKW)

I haven't looked for more.

By the way, yIQong should not be on that list, as it's not a verb of quality.

-- 
SuStel
http://trimboli.name