Answer:
We all know that usually native born Americans are
Step-by-step explanation:
A qualifier is considered a phrase or word that limits or enhances how absolute or generalized that a sentence is. The main purposes of qualifiers is to intensify or in most instances, qualify an adverb or adjective. In the sentence above, the qualifier is in the sentences identified because the word "usually", tends to limit the absoluteness of the generalization that native born Americans are U.S. citizens.