"not to V" vs "to not V" ; "... and ... + have / has"?

"to not" or "not to"?
http://groups.google.com/group/alt.usage.english/browse_thread/thread/51ca586df3251796/

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"... and ... + have / has"?

Re: Have or has? Strict or flexible use.
http://groups.google.com/group/alt.usage.english/browse_thread/thread/594cd0cd4013d28a#
E.W.:

".... Identifying such things is sheer memorization of idiom."