regex - Find words does not end with a letter expression using regexp -

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i trying find word ends 'k' letter , must come after these letters 'a,e,o'.

regex should find this:

'stack' 'kick' 'kiik' 'kimk' 'gesk'

and should not find belows:

'book' 'beak' 'aiok'

for gain use reguler expression :

(?![aeo]+k)^.*?$

. not work.

^.*(?<![aeo])k$

you can use words ending k.see demo.the lookbehind separate out words having aeo before last k.

https://regex101.com/r/cd5jk1/3


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