Навигатор может заменить бумажную карту, но карта полезна без интернета.

Навигатор может заменить бумажную карту, но карта полезна без интернета.
A navigator can replace a paper map, but a map is useful without the internet.
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Questions & Answers about Навигатор может заменить бумажную карту, но карта полезна без интернета.

What does может заменить mean and how is it formed?

может заменить is a verb phrase meaning “can replace” or “is able to replace.” It’s formed by:

  • может – third-person singular of мочь (“to be able”).
  • заменить – the perfective infinitive “to replace.”
    Together, they express ability plus a one-time, complete action.
Why is бумажную карту in the accusative case?

In Russian, the direct object of a transitive verb takes the accusative. Here, бумажную карту (“a paper map”) is what the navigator replaces, so it changes to the accusative:

  • Nominative бумажная карта → Accusative бумажную карту.
Why is интернета in the genitive case after без?
The preposition без always requires the genitive case, so интернет (“Internet”) becomes интернета. Literally, без интернета = “without Internet.”
Why is карта repeated in the second clause instead of using a pronoun like она or её?
Repeating карта emphasizes the contrast between the two ideas (“navigator vs. map”). Using a pronoun (она полезна) is grammatically fine, but the noun repetition makes the sentence clearer and stylistically stronger.
Why is there a comma before но?

но (“but”) is a coordinating conjunction connecting two independent clauses:

  1. Навигатор может заменить бумажную карту
  2. карта полезна без интернета
    In Russian, a comma is placed before но when it joins two full sentences.
Why use the perfective infinitive заменить instead of the imperfective заменять?

заменить (perfective) focuses on a single, completed action (“to replace once”).
заменять (imperfective) would imply a habitual or ongoing action (“to be replacing”).
Here, we want “can replace (and complete that replacement),” so the perfective is appropriate.

How would you literally translate the sentence?

Literally:
“A navigator can replace a paper map, but a map is useful without the Internet.”
In fluent English you might say:
“A GPS navigator can replace a paper map, but a paper map is useful when you don’t have Internet.”