Possible Clues:

• ''__ the rose without the thorn'': Herrick
• "In thy dreams!"
• Aye's opposite, poetically
• 'What, will these hands ___ be clean?': Lady Macbeth
• At no time, to Tennyson
• Not once, to a poet
• 'I ___ saw this before': Desdemona
• ''Thy love __ alter . . .'': Shak.
• 'The all-seeing sun ___ saw her match since first the world begun': Romeo
• Thomas Moore's '___ Ask the Hour'