I want to say:

We fought the romulans during the second and third century

So I write:

qaStaHvIS vatlh DIS poH cha'DIch wejDIch je, romuluSngan DISuv

Would joining ordinals by {je} or any other conjunction be considered to be correct?

--
Dana'an
https://sacredtextsinklingon.wordpress.com/
Ζεὺς ἦν, Ζεὺς ἐστίν, Ζεὺς ἔσσεται· ὦ μεγάλε Ζεῦ