YOU SAID:
spaghetti is the favourite duck
INTO JAPANESE
スパゲッティはお気に入りのアヒルです
BACK INTO ENGLISH
Spaghetti is my favorite duck
INTO JAPANESE
スパゲッティは私のお気に入りのアヒルです
BACK INTO ENGLISH
Spaghetti is my favorite duck
That didn't even make that much sense in English.