Kestoperfektin käyttö:

- menneisyydessä alkanut, yhä jatkuva tai kesken oleva tekeminen: They have been trying to learn this for years.
- menneisyydessä alkanut olotila: I have been feeling extremely confident in the past days. 


Muodostus:

- VÄITE: have/has + been + pääverbin -ING-muoto: Siiri has been trying the get the grips of this for the whole week. 
- KIELTO: They haven ´ t been working hard enough lately. 
- KYSYMYS: How have you been doing recently?


https://www.google.com/search?q=the+present+perfect+continuous+rules&sca_esv=b3c977ca37d7e841&rlz=1C1GCEA_enFI1151FI1151&udm=2&biw=1536&bih=695&ei=fV0paem-H5HBwPAPwffbGQ&ved=0ahUKEwip8bH2tpSRAxWRIBAIHcH7NgMQ4dUDCBI&uact=5&oq=the+present+perfect+continuous+rules&gs_lp=Egtnd3Mtd2l6LWltZyIkdGhlIHByZXNlbnQgcGVyZmVjdCBjb250aW51b3VzIHJ1bGVzMgYQABgHGB4yBhAAGAgYHkjoIVCoA1inIHABeACQAQOYAYQDoAG4CaoBBzcuMS4xLjG4AQPIAQD4AQGYAgigAqIDwgIEEAAYHsICCBAAGAgYChgewgIIEAAYBxgIGB6YAwCIBgGSBwE4oAfHGbIHATe4B5sDwgcFMC43LjHIBw8&sclient=gws-wiz-img#vhid=ksq-94be1fZ-FM&vssid=mosaic Nov 28, 2025