Natives speak in their own tongue, whether it is English or dialect
That will vary with their language and as you did not specify where they are natives of, i can't begin to guess which of the many thousands of languages they might speak.
Brazil
He forces the island's natives to learn to speak his language.
Everybody speaks french in New-Caledonia. But the accent of the natives is particular.
spanish is so important in are neighborhoods because a lot of or natives speak spanish
It's called Brazil.
Yes. They forced their culture and traditions upon them, including their language. That is the reason nowadays Mexico's people speak mostly in Spanish.
The language that Hawaiians speak is Hawaiian, also known as ʻŌlelo Hawaiʻi. It is an official language of the state of Hawaii and is spoken by a small but growing number of people.
The natives speak Mallorquin, a dialect of Catalan. The official languages are Catalan and Spanish, most people can speak both. Because of the high tourism in the area many people speak English, German and French.
Brazil, that's is the only one, at least officially
No, depending on some regions of Mexico many speak in dialects. example: In San Luis, Potosi, Mexico some natives speak Huaxteco dialect. And of course everyone is capable of learning and speaking different languages.
Yes, some natives were killed by other natives, such as the Lenape and Wampanog.