The Finnish Perfect Tense is used to talk about actions that have happened at an unspecified time in the past and are still relevant or have consequences in the present. It's like saying 'I have eaten' in English.
Important Points
Use 'olla' in the present tense: olen, olet, on, olemme, olette, ovat.
Add the past participle of the main verb.
The past participle often ends in '-nut' or '-nyt' for singular and '-neet' for plural.
The Perfect Tense shows that something started in the past and is still important now.
Examples
Olen syönyt (I have eaten)
Olet lukenut kirjan (You have read the book)
He ovat käyneet koulussa (They have been to school)
In these examples, 'olen', 'olet', and 'ovat' are forms of 'olla'. 'Syönyt', 'lukenut', and 'käyneet' are past participles of the main verbs.
Important Points
Use the Perfect Tense when the exact time of the action isn't important.
It helps to show that something has happened and affects now.
Regular verbs follow the '-nut/-nyt' pattern for past participles.
The subject of the sentence determines the form of 'olla'.