Hi everyone, let me take advantage of that... I recently learned about that structure (I didn't know it!): - Do you have any sisters? - Yes, two. - Oh, really? I didn't know you had any sisters!
Hi, "I didn't know that anything was wrong" ---> the fact that there was something wrong. I really thought everything was ok. "I didn't know that you had any sisters" ---> the fact that you have some sisters. I really thought you had none.
Just wondering if those kinds of anys are mandatory... or "some" is ok too.