How do you spell taer like taring something up?

The correct spelling of "taer" in the context of "taring something up" is tear.

Tear can be used as a verb meaning:

* To rip or pull apart: "She tore her dress on the fence."

* To damage or destroy: "The storm tore down the old building."

* To move or run quickly: "He tore through the forest."

So, "taring something up" would be spelled tearing something up.