Breakdown of Уточнение границ закончат не позднее чем завтра.
Questions & Answers about Уточнение границ закончат не позднее чем завтра.
Because уточнение границ is not the subject here — it is the direct object.
The verb закончат means they will finish. In Russian, the subject they is often omitted when it is unknown, unimportant, or obvious from context.
So the structure is essentially:
- [Они] закончат уточнение границ...
- [They] will finish the boundary clarification...
Also, уточнение is a neuter inanimate noun, and in Russian its nominative and accusative forms are the same. So just looking at уточнение does not tell you its role; the plural verb закончат shows that it cannot be the subject here.
If уточнение границ were the subject, you would expect a singular verb, for example:
- Уточнение границ закончится не позднее чем завтра.
Because границ is genitive plural, and that is the normal case after the noun уточнение.
A useful contrast:
- with the verb: уточнять границы = to clarify the boundaries
- with the noun: уточнение границ = clarification of the boundaries
So the verb уточнять takes a direct object in the accusative (границы), but the related noun уточнение usually takes the dependent noun in the genitive (границ).
This is very common in Russian:
- обсуждать вопрос → обсуждение вопроса
- решать проблему → решение проблемы