"Wamesema kwamba hawapendi"
Translation:They have said that they don't like
i'm not sure if it's a complete sentence or not but I've definitely heard plenty of tanzanians say "sipendi" without any object after it. Although in all cases there should be some understood object. like if i asked "je, unapenda ndizi" (do you like bananas?) they might say "sipendi" without any object but the object would be assumed to be bananas.