Group 1(\b(?:i\s+)?(?:have\s+)?) \ban ASCII word boundary
Non-Capturing Group(?:i\s+)? ?repeats the group contents below at most once:
ithe literal i (10510 / 1518 / 6916) (case insensitive)
\s+any whitespace character, repeated at least once
Non-Capturing Group(?:have\s+)? ?repeats the group contents below at most once:
havethe literal text have (case insensitive) \s+any whitespace character, repeated at least once
Non-Capturing Group(?:had|faced) hadthe literal text had (case insensitive) facedthe literal text faced (case insensitive) \s+any whitespace character, repeated at least once
Group 2((?:the\s+)?same\s+(?:problem|question|issue|here)) Non-Capturing Group(?:the\s+)? ?repeats the group contents below at most once:
thethe literal text the (case insensitive) \s+any whitespace character, repeated at least once
samethe literal text same (case insensitive) \s+any whitespace character, repeated at least once
Non-Capturing Group(?:problem|question|issue|here) problemthe literal text problem (case insensitive) questionthe literal text question (case insensitive) issuethe literal text issue (case insensitive) herethe literal text here (case insensitive) (*SKIP)acts like (*PRUNE), but the next unanchored match attempt starts where (*SKIP) was reached instead of at the next subject character
(*F)forces the current match attempt to fail at this position