Because apparently the model doesn't know about the actual verb (https://en.wiktionary.org/wiki/blueberry#English), it decides to treat the request as some kind of fantasy linguistics, making up its own definition on the fly. It provides grammatically incorrect examples inconsistent with the grammatically incorrect table of conjugations it generates next.
It's still easy to trip up. The model's tendency to respond positively to user impact will have it do stuff like this: https://chatgpt.com/share/6897cc42-ba34-8009-afc6-41986f5803...
Because apparently the model doesn't know about the actual verb (https://en.wiktionary.org/wiki/blueberry#English), it decides to treat the request as some kind of fantasy linguistics, making up its own definition on the fly. It provides grammatically incorrect examples inconsistent with the grammatically incorrect table of conjugations it generates next.