Think of these as the word “of”
No- connects to nouns “un onada no famila, a family man”
Instead of saying "He is who we're talking about" you would say "Opa s'es de jen no nuso twaites"
du- connects to verbs “faides du aiya, make easily”
du makes whatever comes in front of it an adverb, basically
lo- connects to adjectives “aiya lo siorti, easy as cake"
"Opa s'es sansa lo shartapa! He's white as a sheet of paper!"