Questions & Answers about Milion korun je hodně peněz.
The verb agrees with milion, not with korun.
In Milion korun je hodně peněz, the grammatical head of the subject is milion = million, which is singular. So Czech uses je = is.
A helpful way to think about it is:
- milion = the main noun
- korun = dependent noun, meaning of crowns
So the structure is basically A million of crowns is a lot of money.
This is similar to English, where A million crowns is a lot of money also sounds natural when we mean one total amount.
Because after milion, Czech normally uses the genitive plural of the counted noun.
The base noun is:
- koruna = crown / koruna
Its genitive plural form is:
- korun
So:
- milion korun = a million crowns
This is a very common pattern with quantity words and large numbers:
- sto korun = one hundred crowns
- tisíc korun = one thousand crowns
- milion korun = one million crowns
So korun is not random; it is the required case form after a quantity expression like milion.