YOU SAID:

Yeah that’s fine I don’t have to go to the park

INTO JAPANESE

ええ、それは私が公園に行く必要はありません大丈夫です

BACK INTO ENGLISH

yes, it's okay I don't have to go to the park

INTO JAPANESE

ええ、公園に行かなくても大丈夫です

BACK INTO ENGLISH

yes, you don't have to go to the park

INTO JAPANESE

ええ、あなたは公園に行く必要はありません

BACK INTO ENGLISH

yes, you don't have to go to the park