YOU SAID:
isn't it abnormal that you see him walking around with this one friend all the time?
INTO JAPANESE
彼がいつもこの一人の友達と歩き回っているのを見るのは異常ではないでしょうか?
BACK INTO ENGLISH
Isn't it unusual to see him walking around with this one friend all the time?
INTO JAPANESE
彼がいつもこの一人の友達と一緒に歩き回っているのを見るのは珍しいことではないでしょうか?
BACK INTO ENGLISH
Isn't it unusual to see him walking around with this one friend all the time?
That didn't even make that much sense in English.