my $mod = (Weeks_in_Year($ARGV[1]) eq 52) ? 2 : 1;
   ...
   ($present ? "DO" : "DID") . ($week % $mod ? "" : "N'T")

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Hmmm. When $mod is 1, % is always zero - and you "DON'T/DIDN'T" have off.

In reply to Re^3: Determining if I have a particular Friday off by hbm
in thread Determining if I have a particular Friday off by thmsdrew

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