Questions & Answers about He löysivät kultaa.
- he = they
- löysivät = found
- kultaa = gold / some gold
So the sentence means They found gold.
Because he means they, and in standard Finnish the verb agrees with the subject.
The verb here is in the 3rd person plural:
- hän löysi = he/she found
- he löysivät = they found
So he löysivät is the normal written-language combination.
The dictionary form is löytää, meaning to find.
This verb changes quite a bit when conjugated:
- löytää = to find
- löysi = found (he/she found)
- löysivät = found (they found)
So löysivät is the past tense plural form of löytää.