Breakdown of Вы можете указать нам правильный путь?
мы
we
вы
you (plural or formal)
мочь
to be able to
путь
track / path (route, journey)
Questions & Answers about Вы можете указать нам правильный путь?
Wait, isn't путь the direct object here? Why didn't its ending change?
It is the direct object, so it's in the accusative case. However, путь is an inanimate masculine noun. For inanimate masculine nouns, the accusative form is exactly the same as the nominative (dictionary) form. Even though путь is an anomalous noun with unusual endings in other cases, its accusative form is simply путь.
Nouns ending in a soft sign (-ь) can be tricky. Does this sentence give us a clue about the gender of путь?
Yes! Look at the adjective правильный (correct). It uses a standard masculine ending. Even though путь declines somewhat like a feminine noun in most other cases, it is strictly masculine. That is why it triggers the masculine inanimate accusative form правильный путь (rather than the feminine правильную путь).
Why is нам used in this sentence instead of нас?
Нам is the dative form of мы (we). The verb указать (to point out / to indicate) requires the dative case for the recipient—the person you are pointing something out to. Meanwhile, the actual thing being pointed out (путь) takes the accusative case.
Why is the perfective verb указать used here instead of the imperfective указывать?