Related Clues:

• "If it ___ broke, don't fix it!"
• Isn't, alternatively
• "Are too!" comeback
• Nonstandard negative
• '___ Wet' (prankster's rearrangement of a 'Wet Paint' sign)
• Grammar class faux-pas
• Is not wrong?
• "___ No Sunshine" (Bill Withers hit)
• ''__ We Got Fun?''
• ''__ She Sweet''
• ''Wherever He __'' (''Mack & Mabel'' song)
• No-no negative
• "--- it cool?"
• Bugaboo for the grammar police
• ''Is so!'' retort