Same typo on same words

My greatest sin is incorrect endings; I probably do it here in posts all the time and never catch it. Instead of -ed I’ll type -ing or -tion. It’s ever worse if a word coming up in the sentence has the ending that I mistype.

Thank God for editors and proofreaders, is all I have to say.

For me, standard becomes stabdard most of the time (I actually just did it again typing it the first time - argh!)