YOU SAID:
oh hello good sir knight. welcome to my castle.
INTO JAPANESE
ああこんにちは良い騎士。私のお城へようこそ。
BACK INTO ENGLISH
Oh hello good Knight! To my castle there.
INTO JAPANESE
ああこんにちは良い騎士!私の城はあります。
BACK INTO ENGLISH
Oh hello good Knight! is my Castle.
INTO JAPANESE
ああこんにちは良い騎士!私の城です。
BACK INTO ENGLISH
Oh hello good Knight! is my Castle.
That didn't even make that much sense in English.