consider that I want to get the phrases that contain party and have been great!.
Therefore, the cases I am missing are those with commas or points that mark a separation between sentences (1) or a maximum of 2 or 3 words between the no|bad and the party (2).
This is my current regex.
(?<!\b(no|bad)\b.*)party
is there any party? --> ok
no party --> ok
it was a bad and poor party --> ok
oh, this was a bad party --> ok
no man, this was great party --> BAD (1) (consider the comma or a point that means end sentence)
no sir it was indeed a barbaric party --> BAD (2) (consider a maximum of two or tree words between no|bad and party)
You may use
(?<!\b(?:no|bad)\b(?:[^,\w]+\w+){0,2}[^,\w]+)\bparty\b
See the regex demo.
Details:
(?<!\b(?:no|bad)\b(?:[^,\w]+\w+){0,2}[^,\w]*) - a negative lookbehind failing the match if, immediately to the left of the current location, there is
\b(?:no|bad)\b - a whole word no or bad(?:[^,\w]+\w+){0,2} - zero, one or two occurrences of any 1+ chars other than a comma or word chars and then one or more word chars[^,\w]+ - and then one or more chars other than , and word chars.\bparty\b - a whole word party.