Learn Finnish: Maahanmuuttaja luottaa siihen, että hän saa työluvan. - The immigrant trusts that he will get a work permit.

In Finnish, certain verbs require their object to be in a specific case. The verb luottaa (to trust) requires the illative case, meaning you trust 'into' something. Because an että clause cannot take a case ending itself, Finnish uses a pronoun bridge. We put the pronoun se into the required illative case (siihen) to satisfy the verb, and then attach the että clause.

Is the verb luottaa always followed by the illative case?

Yes! The verb luottaa has a strict case rection requiring the illative. Whether you are trusting a person, a thing, or a whole clause, it must take the illative ending. For example, 'I trust you' is Minä luotan sinuun.

Why is the work permit (työlupa) written as työluvan?

It acts as the total object of the verb saa (gets). Because the subordinate clause is a normal affirmative sentence with a subject (hän), the total object takes the genitive-like accusative ending -n. If it were a negative sentence, it would be in the partitive case: ei saa työlupaa.

How is the word maahanmuuttaja (immigrant) formed?