Osata ^{(Verb type4)}

1. (transitive + first infinitive) to know how (to do something), can (do something)

   Osaatko sulkea tämän laitteen?

   Do you know how to switch this machine off?

2. (transitive + partitive) to know (a language, a game or similar)

   Osaatko italiaa?

   Do you know Italian?

   Osaatko shakkia?

   Do you know (how to play) chess?

3. (archaic) Synonym of osua

The present, imperfect, perfect, and pluperfect (past perfect) tenses in English correspond to "speaks", "spoke", "has spoken", and "had spoken".

The conditional present and perfect moods in English typically correspond to "would" and "would have".