The Present Perfect Continuous tense uses has/have been along with the present participle (verb + ing) and since or for to indicate an action that began in the past and has continued up to the present. Examples are provided using has/have been with different subjects and time expressions like since, for, hours, and years to illustrate ongoing actions over a period of time or specific point in time in the past continuing to the present.

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PRESENT PERFECT
CONTINUOUS TENSE
In Present Perfect Continuous Tense we use
has been or have been, first form of
verb+ing (present participle form) and
since or for.
EXAMPLES
He has been crying for 3 hours (no specific time).
She has been getting ready since last three hours
(specific time).
It has been raining cats and dogs since morning.
Dani has been working like donkeys for two hours.
I have been following Vijay Mallya for two years.
We have been eating Kebab since 03:00 am.
They have been loving for three hours.
You have been lying since last 10 minutes.
Those boys have been failing in Class 10 since
2012.
Has been is used with He, She, It and
Singular Nouns.
Have been is used with I, We, You, They
and Plural Nouns.
Since is used for point of time.
For is used for period of time.