Related Clues:

• Grammatical category
• Beg, borrow or steal
• Run or hide, e.g.
• Trick or treat, e.g.
• It might be irregular
• Predicate need
• Sentence necessity, often
• Publish or perish, e.g.
• Word of action
• Contract proviso
• Hit or miss?
• Hit or miss
• Trick or treat?
• Buy or sell
• ''Sink'' or ''swim''