regexextract all groups from list as arrayformula

Question

I'm looking for a regex arrayformula which would be able to extract all possible groups from a list. here is a visualisation:

so far I tried:

=ArrayFormula(REGEXEXTRACT(A2:A6, "["&TEXTJOIN("|", 1, A8:A)&"]"))
=ArrayFormula(REGEXEXTRACT(A2:A6, "[("&TEXTJOIN("|", 1, A8:A)&")]"))
=ArrayFormula(REGEXEXTRACT(A2:A5, "["&TEXTJOIN("|", 1, "("&A8:A&")")&"]"))
...

Answer 1

you can fake it like this in B2:

=INDEX(IF(REGEXMATCH(A2:A5, 
 TRANSPOSE(SUBSTITUTE(A8:A10, " ", ".*"))), TRANSPOSE(A8:A10), ))