可以，在一些语境里是可渣贺姿以的，比如
I've learnt now how important it is to tell the truth
I have seen now what difference it can make to have a good English teacher.
I have heard now and again that practices make perfect
满意请及时采纳如绝拍桐，谢
不可以！now与现在进行时连用的。你的意思我懂，但那是错误的，你只是把汉语搬了进去。
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