in reply to words wich ends with "f"
I'd go with something like this (yeah, TIMTOWTDI):
$s = "four fifth two frog left leaf fred wolf";
@f = grep (/^[^f]\w*f\w*$/, split(' ', $s));
An organised event
A traditional gathering
With family and friends
I don't celebrate the New Year
Adjusting my clocks for the Leap Second
I can't remember
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