Why are my cheeks red? Have you been doing something? -Should I use present perfect, or should I use present perfect continuous? I mean, from what I know, when you see the result clearly, you should use present perfect continuous. For example: The street is full of snow. It has been snowing.
I think both are possible. It depends on the context and the nature of the verb. Why do you look so pale?
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I think both are possible. It depends on the context and the nature of the verb.
Why do you look so pale? Have you not eaten today?
Why do you look so tired? Have you been running?