Learn Finnish: Kutsun sinut ravintolaan syömään. - I am inviting you to a restaurant to eat.

In Finnish, when you use a verb of motion or direction like kutsua (to invite), the action you are directing someone to do takes the third infinitive illative form. This ends in -maan or -mään. Think of it as inviting someone into the action of eating.

Why are both ravintolaan and syömään using an illative (into) ending?

They both answer the question "where to?". You are inviting the person physically into a restaurant (ravintolaan) and also into the activity of eating (syömään). Finnish smoothly links the destination and the action this way.

Why is the word for "you" in the accusative form sinut rather than the partitive form sinua?

We use the total object form (sinut) because the action of inviting is seen as a complete action affecting the whole person. The verb kutsua generally triggers this accusative form for personal pronouns when the invitation is a complete, defined event.

Does the action syömään always have to go at the very end of the sentence?

While Finnish word order is quite flexible, putting the location (ravintolaan) before the activity (syömään) is the most standard and natural order.