Elon.io is an online learning platform
We have an entire course teaching Finnish grammar and vocabulary.
Questions & Answers about Opettaja auttaa opiskelijaa.
Why does opiskelijaa end with an extra -a?
This is the partitive ending. The verb auttaa (to help) is a "partitive verb," which means the person or thing you are helping must always be in the partitive case. Since the base word for student is opiskelija, we add an extra -a to make it opiskelijaa.
Both auttaa and opiskelijaa end with a double aa. Are they both in the partitive?
No, they have double vowels at the end for completely different reasons! Opiskelijaa has a double a because the partitive ending -a is added to the noun opiskelija. However, auttaa is a verb. Its double a is simply the third-person singular ending (he/she/it helps), which is formed by doubling the last vowel of the verb stem.
If I want to say "I help the student", does the verb change?
Yes, it goes through a process called consonant gradation. The strong double -tt- in the "he/she" form (hän auttaa) changes to a weak single -t- in the "I" form: minä autan. The object remains exactly the same: Minä autan opiskelijaa.
How do we know it means "the teacher" and not "a teacher"?
Finnish doesn't have articles like "a" or "the". Opettaja can mean either one depending on the context. However, when a noun is placed at the very beginning of the sentence as the subject, it usually represents known information and feels most natural translated as "the".