haven't

He said he responded: "I've said something really stupid. They're investigating my behaviour, but more and more people are coming forward with complaints about me. Mum, they're not all true. I haven't done these things."

Does that mean that local hockey fans haven’t seen the last of the Koreatown senior center players as part of the pregame festivities?

“To put this in perspective, most physicians in the U.S. haven’t seen a single case of any of these diseases because we have very effective vaccines,” said Dr. Kristina Bryant, a pediatric infectious diseases physician at Norton Children’s Hospital in Louisville, Ky.

We just haven’t always counted the cost.

Researchers still haven't decided how best to classify all the different types, but they are increasingly trying to map the specific kinds of input they encode through the patterns of which neurons fire when, and the relationships between the different representations this creates.