Verb agreement with quantities

In English, plural quantities usually take a plural verb. In Finnish, when a subject starts with a number greater than one, the verb remains in the third-person singular.

The number takes its basic form, the noun following it is in the partitive singular, and the verb treats the entire group as a single grammatical unit.

A hundred ants are building a mound for the winter.
Sata muurahaista rakentaa kekoa talveksi.

Large Numbers

This rule applies strictly, no matter how large the quantity is. Whether you are talking about five bees or a thousand ants, the verb stays singular.

Five bees sit in the flower.
Viisi mehiläistä istuu kukassa.
A thousand ants live in the mound.
Tuhat muurahaista asuu keossa.

Collective Nouns

The same logic applies to words that describe a collective group, such as yhdyskunta (colony) or parvi (swarm). Even though a hive contains thousands of insects, the noun itself is singular, so the verb must also be singular.

The colony searches for food in the forest.
Yhdyskunta etsii ruokaa metsästä.
A swarm of bees flies into the tree.
Parvi mehiläisiä lentää puuhun.