In english the words "someone" and "something" are singular. Or at least I think they are..

So, does this mean that whenever we use the {-lu'} it actually means that the unspecified subject is singular too ?

Example:

'Impey' qach lumutlhlu'pu'

Does this mean "someone (singular) constructed the pyramids" e.g. a pharaoh ?

Or can it mean too "someone(s) (plural) constructed the pyramids" e.g. the egyptians ?

~ Qa'yIn