YOU SAID:
what I am talking about is these things
INTO JAPANESE
私が話しているのはこれらのことです
BACK INTO ENGLISH
These are the things I'm talking about
INTO JAPANESE
これらは私が話していることです
BACK INTO ENGLISH
These are what I'm talking about
INTO JAPANESE
これらは私が話しているものです
BACK INTO ENGLISH
These are what I'm talking about
You've done this before, haven't you.