Which of the following sentences correctly uses the present perfect continuous?

Anglès - Gestió de vendes i espais comercials

a: I have been working here for five years.
b: I has been working here for five years.
c: I have worked here for five years.
d: I am being working here for five years.

Resposta correcta: a

Explicació: The present perfect continuous is formed with 'have/has been' followed by the gerund, indicating an action that has continued up until the present.

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