Historical clue formulations

• With 86-Down, what Washington purportedly could not do — 2011-07-24
• "I cannot ___ lie" — 2004-06-08
• "Don't ___ soul!" — 2004-01-22
• "How can you ___...?" (start of a conundrum) — 2000-03-25
• "I cannot ___ lie" — 1997-02-07
• "I cannot ___ lie!" — 1996-12-03