Qov certainly didn’t hesitate in Discovery:

yIvuv, tIquvma.  pagh SoH. yejvamvaD jeSmeH DIb Dabajbe'pu'.
Show respect, T'Kuvma. You are nothing. You have not earned a seat
at this council. (DSC/Qov "Battle at the Binary Stars")

--
Voragh

From: De'vID

On Tue, 25 Jun 2019 at 16:25, mayqel qunen'oS wrote:

Can I use {rIp} and {yej} in this way ? (i.e. on their own; not being
a part of a composite noun)

What makes you think you can't?