YOU SAID:
Whenever any of my friends have been posting theirs
INTO JAPANESE
私の友人の誰かが彼らの投稿をしているときはいつでも
BACK INTO ENGLISH
Whenever any of my friends are making their posts
INTO JAPANESE
私の友人の誰かが彼らの投稿を作っているときはいつでも
BACK INTO ENGLISH
Whenever any of my friends are making their posts
That didn't even make that much sense in English.