Objects of commands and necessity

The Morning Rush

Before tackling the morning rush, remember that a necessity verb like täytyy (must) is paired with a subject in the genitive case.

You must hurry, because school starts soon!
Sinun täytyy kiirehtiä, koska koulu alkaa kohta!

Dropping the Object Ending with Necessity Verbs

When an action affects a whole object (a "total object"), the object usually takes the genitive-accusative ending -n.

I prepared breakfast yesterday.
Minä valmistin aamiaisen eilen.

However, if the action is driven by a necessity verb like täytyy, this rule changes. The singular object drops the -n ending entirely and instead takes the nominative case (the dictionary base form). Any adjective modifying the object drops its ending too!

I must eat my sandwich quickly.
Minun täytyy syödä voileipä nopeasti.
You must put on a warm coat today.
Sinun täytyy pukea lämmin takki tänään.

Dropping the Object Ending with Commands

This exact same rule applies to the imperative mood. When you command someone to do something to a whole object, the singular object (and its adjectives) will also drop the -n ending and stay in the nominative case.

Eat your sandwich and drink your juice!
Syö voileipä ja juo mehu!
Prepare breakfast for your sister!
Valmista aamiainen siskolle!
Pack a new sandwich!
Pakkaa uusi voileipä!
Fetch the energetic dog inside.
Hae reipas koira sisään.

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