cs = Case sensitive vs Case in-sensitive
ww = Whole word vs not whole word
HAS/NOT = Sentence has tag/Does not have tag

 cs/!ww/HAS - runs
!cs/!ww/HAS - (?i)runs
 cs/ ww/HAS - \bruns\b
!cs/ ww/HAS - (?i)\bruns\b
 cs/!ww/NOT - ^(?:(?!runs).)*$
!cs/!ww/NOT - ^(?:(?!(?i)runs).)*$
 cs/ ww/NOT - ^(?:(?!\bruns\b).)*$
!cs/ ww/NOT - ^(?:(?!(?i)\bruns\b).)*$