Possible Clues:

• 'The lady -- protest ...'
• “How ___ the little crocodile improve his shining tail...”: Lewis Carroll
• Accomplishes, to Shakespeare
• "He __ not sleep": Shelley
• "The lady __ protest ...": "Hamlet"
• 'The fool ___ think he is wise...' ('As You Like It')
• 'The lady ___ protest too much, methinks'
• Part of the verb to do (archaic)
• "The bell __ toll for him ...": Donne
• Third person biblical verb