A sentence with perpetuate?

White supremacists believe they have an urgent duty to perpetuate the white race and prevent it from going extinct.In order to break the curse and survive, you must make a copy of the videotape and...

If you mean how to use perpetuate in a sentence, here is an example: They say laughter is the key medicine to perpetuate your life. (perpetuate- to extend or prolong)

You just used perpetuate in a sentence. However, it was not a complete sentance.

These things have the tendency to perpetuate as long as you allow them.

Instead of solving the problem, yelling at each other will only perpetuate it.