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3. I must say good night

I must say good night

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I must say good night.

an expression announcing the speaker's intention of leaving for the night. Jane: It's late. I must say good night. Bob: Can I see you again? Jane: Call me. Good night, Bob. Bob: Good night, Jane. Sue: I must say good night. Mary: Good night, then. See you tomorrow.

See also: good, must, night, say