Sentence examples for haven't demonstrated from inspiring English sources

They would say politicians haven't demonstrated much engagement with the natural world over the years.

We do know that… but we haven't demonstrated that capability yet… so that's the next priority after finding them.

"There are no screeners working today who haven't demonstrated, in a real-world environment, in a hands-on setting, their ability to use this equipment to identify and keep bombs from getting on planes," he said.

"When it comes to search engine stuff, they haven't demonstrated that they are on top of it," said Danny Sullivan, a search expert who has followed the prank since its inception on his blog, Search Engine Land.

For American politics, the Web has proved itself to be a powerful money-raising device, but e-mails, blogs, YouTube videos and Facebook haven't demonstrated an ability to get voters to the polls.

Garth Harries, an Education Department official who plays a major role in school closings and openings, said the schools being shuttered "have demonstrated a level of profound failure, and haven't demonstrated potential to turn around".

"They have not demonstrated any genuine concern for the victim".

Researchers have not demonstrated that ability in other species, but Dr. Davis said migratory mammals or birds could have it.

Records show that several of her clinics have not demonstrated that they meet federal rules for doctors' training.

Indeed, most small randomized studies have not demonstrated benefit.

However, some studies have not demonstrated this inverse association.