YOU SAID:

if your second cousin doesnt have the same dad as you it should be legal

INTO JAPANESE

あなたの第二のいとこがあなたと同じ父親を持っていないなら、それは合法でなければならない

BACK INTO ENGLISH

If your second cousin does not have the same father as you, it must be legal

INTO JAPANESE

あなたの第二のいとこにあなたと同じ父親がいなければ、合法でなければなりません

BACK INTO ENGLISH

If your second cousin does not have the same father as you, you must be legal

INTO JAPANESE

あなたの第二のいとこにあなたと同じ父親がいなければ、合法でなければなりません

BACK INTO ENGLISH

If your second cousin does not have the same father as you, you must be legal