I would like to know the difference between "1" and "2". 1. He should be here by now - something must have happened to him. 2. He should have been here by now - something must have happened to him.
Top answer
Nothing really; the first intimates that the arrival time is essentially 'now' and the second suggests that arrival time was definitely before now.
— Mister Micawber
Nothing really; the first intimates that the arrival time is essentially 'now' and the second suggests that arrival time was definitely before now.
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Maybe I'm crazy, but I detect a slight difference. (l) Two persons are talking: Where is Tom? I don't know. Have you checked the fifth floor? He should be here by now, for it's 8 o'clock, and he always arrives by 7:45. (2) Two persons: What's wrong? I'm sure something has happened to Mona. Why? It's 6 o'clock. She should have been here by now, for she always gets home by 5:15.