How to use "attempted" in a sentence

A disruption of the Federal Union, heretofore only menaced, is now formidably attempted.

When she couldn't banish that image, she attempted to alter it, mentally wiping the words away

But when she attempted to type in her instruction, the keyboard was locked; the keys wouldn't depress.

They drove up a steep, abandoned logging trail, a deteriorated dirt road so treacherous, so choked with snow, so icy that only a fool would have attempted to negotiate it any way but on foot."

On Tuesday I shall return.' Dr Stone attempted to leave, carrying the suitcase, as well as a large coat and a bag of books

No one on Earth has attempted to explain why the shots ended after this