The errors of a four-year old

Konrad wanted to write Natalie a congratulatory note after she used the toilet the other day (she's going about once a day), so he asked me how to spell 'Natalie.'  Funny how he spelled his own name:  Konrab!

Konrad's other funny spoken error that I've started to work on is using "don't" when he means "do."  For example, he often says something like, "How don't you spell Natalie?"

I guess they go together:  b is the opposite of d; and don't is the opposite of do.