Ohhhh yes! They definitely know what they're saying!
A couple winters ago, we ran out of propane. There is no natural gas here, it's all propane. So when the tank is nearly empty...you'd better be able to re-fill it, or you'll be outta luck. It's not inexpensive, either.
Mr. Diva read me the riot act for days, because I'd let the tank run out, and couldn't afford to re-fill it for a couple of weeks, until my next check arrived.
I finally got more propane. But no sooner was the tank filled, than the electricity went out! (Yes, I'd paid the bill. It was a power outage.)
Mr. Diva went ballistic. In the middle of his diatribe, a little voice pipes up from the bird room. "We got proPAAANE?" It was Sydney, my African Grey. Mr. Diva stopped in mid-rant and started laughing. "Yes, Sydney. We've got propane!"
She never said it before. Nor has she said it since.
Another time, we had to be away for about a week. I had a friend come in to take care of the birds and four-leggers. It was shortly after we'd moved to this house.
When we got back, I went into the bird room to say hello to Sydney and Ripley. Sydney stiffened and looked straight at me and said, "WHAT's going on? WHERE you go?" In a tone that I swear, if she could've put her hands on her hips, that would have been all that was missing!
She'll also ask "Can I come out?" when she wants out of her "house" to be with us. Now I've never said that to her. It's always been, "You wanna come out, Syd?" Nor has she ever been taught "Where you go?" She's always heard, "Where did ___ go, Sydney?"
SHE converted it correctly to "Can I come out" and "Where YOU go?" Scary!