"yuQmey HopDaq mIDmey lucherlu'taH."
Translation:Colonies were being established on distant planets.
Sort of, yes -- if the suffix -lu' for an indefinite subject is present, the prefixes are used as if the sentence's object is the subject of the verb and the object is third person singular.
Thus, for example, wI...lu' for "we are ...ed; someone ...s us" or lu...lu' for "they are ...ed; someone ...s them".
Eww... that description will inevitably lead to confusion as people start to think that objects actually are subjects.
Here's a better one: when the subject is indefinite with -lu', use a different set of prefixes than the usual ones:
This can be illustrated with simple examples.
vIleghlu' someone sees me
Daleghlu' someone sees you (singular)
leghlu' someone sees him/her/it
wIleghlu' someone sees us
boleghlu' someone sees you (plural)
luleghlu' someone sees them
You just have to memorize these prefixes along with the others.