Related Clues:

• Like some verbs
• Ongoing story
• Story that's 'to be continued'
• Soap opera, e.g.
• Against the rules
• Like the verb 'to be'
• Off-and-on
• Not quite right
• "Flash Gordon," e.g.
• 'Buck Rogers,' for one
• Uneven
• Fluctuating
• Soap opera
• Published in installments
• Nonconforming