YOU SAID:
I saw the mermaid climb therock
INTO JAPANESE
私は人魚が岩を登るのを見た
BACK INTO ENGLISH
I saw a mermaid climb the rock.
INTO JAPANESE
私は人魚が岩を登るのを見た。
BACK INTO ENGLISH
I saw a mermaid climb the rock.
That didn't even make that much sense in English.