To make negative statements in the Present Perfect Continuous, use:

 

have/has not (haven’t/hasn’t) + been + the “-ing” form of the verb

 

Singular	Plural
I haven’t been running You haven’t been running He/she/it hasn’t been running	We haven’t been running You haven’t been running They haven’t been running

 

I haven’t been eating all day. I am very hungry.

Vicky hasn’t been sleeping last night and now she looks drowsy.

We haven’t been talking to each other since last Friday.