Sentence:
You have been wearing the same sweater for three days. Question:
Why is the present perfect continuous used in this sentence?

Question

Sentence: 
 You  have been wearing  the same sweater for three days. Question: 
 Why is the  present perfect continuous  used in this sentence?

Answer

Because th e sentence emphasizes the  ongoing nature  of the action and its  duration up to now .

Answer

Because the person just put on the sweater a few minutes ago and will probably change soon.

Answer

Because the sweater was worn once in the past, and the action is fully completed.

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