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Phrase(s): Could I come in?
Do you mind if I enter? (A polite request. Also used with can or may in place of could.) • Tom (standing in the doorway): Hello, I’m with the Internal Revenue Service. Could I come in? • Bill: Hi, Tom. What are you doing here? Tom: Could I come in? I have to talk to you. Bill: Sure. Come on in.
McGrawhill's American Idioms And Phrasal Verbs