YOU SAID:
Yosuke is standing next to her...
INTO JAPANESE
洋介が彼女の隣に立っています...
BACK INTO ENGLISH
Yosuke stands next to her...
INTO JAPANESE
洋介は彼女の隣に立っています...
BACK INTO ENGLISH
Yosuke stands next to her...
That didn't even make that much sense in English.