1. Unspecified past time experince.
2. For/Since duration
3. Finished event that shows result in the present.
4. Unfinished situations that started in the past and continue in the present.
5. "Today hasn´t finished"
6. "It has snowed FOR 3 days" "It has snowed SINCE Monday."
7. "I have been to Spain."
8. "It has rained a lot."