English is for my a second language but I probably wrote more words in it than in my native one.

In the last months I frequently found myself forgetting "'s" after "there" or "ït". It not an issue that I remember being there a year ago. Has anyone observed similar things or knows of research that might describe processes like this?

The only explanation I can think of is having reread Korzybski's arguments against the "is of identity".It would be interesting if my unconscious is so opposed to "is" that it censors me from using it whenever I don't pay attention.