According to what you typed, the original sentence is "I don't remember when he called me", which normally would mean "I don't remember what time he called me", not "I don't remember that he called me".
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HotmaleThat's the pattern I have to use, though.I'm not quite sure which pattern you are referring to, but the basic problem is that your sentences are passive versions of "I don't remember that he called me" or "I don't remember him calling me". They are not passive versions of "I don't remember when he called me".
HotmaleI don't remember when he called me. ... passive voiceIf the whole sentence is to be passive, it's
CalifJimI don't remember when I was called by him.This is also a mess, but not as bad a messFor me, "mess" is a bit strong for that sentence. I can accept it, although the passive form does seem somewhat unnecessary.
GPY"mess" is a bit strong for that sentence.Perhaps I'm overly partial to hyperbole.