In what place do they know language Tagalog?

Tagalog is the national language of the Philippines. It is spoken by a majority of the population, particularly in and around Manila, the capital city.

While it's the national language, Filipinos also speak various other languages, including Cebuano, Ilocano, and Waray.

Here's a breakdown:

* Philippines: Tagalog is widely understood and spoken throughout the country.

* Other countries with significant Filipino populations: You might also find people who speak Tagalog in places like the United States, Canada, Australia, and the United Kingdom.

Remember, the Philippines has a rich cultural diversity, so you may encounter different languages and dialects depending on the region you visit.