n Used most often in the expression 'olla pakko' ( + first infinitiivi|infinitive of the verb), which can be translated into English as must, have to, be oblige|obliged to, be force#Verb|forced to, be compel|compelled to. The one who is compelled is put in the genitive case (grammatically, 'pakko' is the subject of the sentence) and the verb is always in the third-person singular (present on#Finnish|on, past oli#Finnish|oli, present perfect on#Finnish|on ollut, past perfect oli#Finnish|oli ollut).