please add this simple pattern. Fixes typical duplicate words. Additionally it can fix this example if you miss the comma:
If and only if, which direction is which?
<rule id="ID" name="if which"> <pattern> <token>if</token> <token>which</token> </pattern> <message>Which should not follow if. Choose either one. Did you forget a comma?</message> <example correction=''>We cannot know <marker>if which</marker> functionality gets tested.</example> <example>We cannot know if functionality gets tested.</example> </rule>