'Has been’ and ‘have been’ suggest an action that started in | English Grammar Vocabulary ™
'Has been’ and ‘have been’ suggest an action that started in the past, but continues in the present.
When we are talking about the present:
If the subject of a sentence is I – You – We – They or a plural noun (cars, birds, children) we use ‘have been‘.
If the subject of the sentence is He – She – It or a singular noun (car, bird, child) we use ‘has been‘.
When we are talking about the past: for any subject we use ‘had been‘.
“Had been,”, suggests an action that both began and ended in the past.