"The grandpa broils the breadfruit."
Translation:Pūlehu ka tūtū kāne i ka ʻulu.
The preposition i has a lot of uses. One of them is to mark the grammatical object of a sentence. Grammatical subjects don't get marked. So if the noun is the subject, it doesn't take i: ‘Ono ka ‘ulu ("The breadfruit is delicious."). But if the noun is the object, it needs to be marked with i: ‘Ai ‘o ia i ka ‘ulu ("He eats the breadfruit.").