Garbage is uncountable so therefore takes 3rd person singular eg sugar is sweet. So garbage was collected. Or rubbish in British English
I think it can technically be plural (not 100% certain) but either way, the English would nearly always be "Garbage was collected" not "Garbage were collected", even with the 'zi-' indicating plural.
Garbage is singular and plural, as is trash (US/Canadian English). Rubbish (UK/Ireland) is mostly plural.
Zilizolewa - which were drunk (an error in this context) / Zilitolewa - were collected.
No, zili'zolewa is correct. Recall the proverb "maziwa yakimwagika, hayazoleki"
What's the infinitive? Shouldn't it be kuzoa? I can't find it in any dictionary :/
check wiktionary, it is there. I have two dictionaries and use an online google translate and couldn't find it in any of those...as if the folks putting challenges here are using the most obscure words possible...eish.