班很誠實 ，他不可能對任何人撒謊 。
Ben is very honest , he couldn't have lied to anyone.
為甚麼要用 could have p.p 的句型?
p.s.
可以寫這樣嗎?
Ben is very honest , he can't lie to anyone.
大雨之後也許太陽會出來 。
The sun may have come out after the heavy rain.
為甚麼要用 may have p.p 的句型?
p.s.可以寫這樣嗎?
The sun may come out after the heavy rain.
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