Smith has bought/has been buying a new house in the country.
I have been helping/have helped my mother to clean up the neighborhood all week.
My brother has been learning/has learnt English for two years now and he loves it.
They have been painting/have painted twenty-five pictures
She has been wanting/has wanted to visit Cyprus for a very long time.
He has been knowing/has known Mark for ages.
We have just been making/have just made an agreement.
People have been taking/have taken photos since 1851