[tlhIngan Hol] pronoun with {-taH} pronouns with {-taH} vs {tu'lu'}

Qo'noSDaq Duj law' tu'lu' Qo'noSDaq bIHtaH Duj law''e' Don't both sentences mean the same? The way I understand them, they both mean "at kronos there are many ships". So, when should someone use {tu'lu'} and when should he use the pronoun with {-taH} variation? -- Dana'an https://sacredtextsinklingon.wordpress.com/ Ζεὺς ἦν, Ζεὺς ἐστίν, Ζεὺς ἔσσεται· ὦ μεγάλε Ζεῦ