YOU SAID:
and if you haven't met anyone yet, you must not have any friends
INTO JAPANESE
まだ誰にも会ったことがないなら、友達もいないはずです
BACK INTO ENGLISH
If you haven't met anyone yet, you probably don't have any friends.
INTO JAPANESE
まだ誰にも会ったことがない人は、おそらく友達がいないでしょう。
BACK INTO ENGLISH
If you haven't met anyone yet, you probably don't have any friends.
You've done this before, haven't you.