I thing therefore I an

I have noticed a set of typos that seem to stem from phonetics or just a flipped brain. I know how to use these words, I know what they mean and I intend to use the correct one, but something happens. I’m not sure it’s comforting or scary that related things happen when I speak.

• There, their and they are
  
• To and do
• My, me and mine
• Non and not
• Half and have
• Then, than and them
• Thing and think
• Am and an
  

Please, please email me (see sidebar) if you notice these things. I won’t take offense, I will be totally grateful. Unless you post a comment telling me that I should be in remedial spelling. Or refer me to Strunk and White. Yes, an under the radar email is preferred.