oh, well, then you're still missing curly braces and mandatory parens :) I was equating to English. But I really meant "spoken language" when I said English... but perhaps that is more of a characterstic of the way English is constructed? I know for me, I had to re-read your original statement a few times to fully grok the meaning. It seems more natural as two separate concepts (personally speaking).

Code-wise you want something like (if A, B, C and D were variables):

if ( !$b ) { 
  $a;
} elsif ( $e and $f ) {
  $c and $d;
}
[download]

if they are statements, something similar should suffice, with perhaps more parens and/or do {} blocks. HTH