It’s a legitimate expression.

来源: 于 2005-10-19 13:09:31 [旧帖] [给我悄悄话] 本文已被阅读：次

Although there is no 主语, you should be able to figure it out by the verb used in the sentence. (I) DON'T have a son yet vs. (she) DOESN'T have a son yet.

However, as you said, my expression is easy to be misinterpreted. I will pay more attention in the future.

MayX, apologize for the 8Po comment.