Definition:
the phrase 'has been' is a verb phrase made up of the present perfect verb 'has' and the past participle verb 'been.'
Rules:
it is used to describe actions that have been completed in past times at or before the present in the context of temporal situations. This verb phrase indicate that a certain action has been performed by the subject, but does not emphasize the period of time when the action was completed.
Examples:
He has been a golf player since 2002.
She has been studying for hours.
Tips:
when using this phrase, pay attention to the verb tense of the sentence and ensure that 'has been' is accompanied by an appropriate verb to form a complete thought.