When I am drawing illustrations with TikZ, the most common mistake I make is incorrectly writing the relative position of a node. I would for example write "left above" in stead of "above left". It is probably due to my native language where you would state "linksboven" when you indicate a position of an object.
Of course this is just a question of correcting and recompiling, but it remains a disturbing annoyance. Is it possible to make an alias for all those above|below left|right, so my document would simply compile when I write Dunglish TikZ?