The united states of america is located in north america. Is the verb in this sentence just "is" or is "located" a verb to??

I respectfully disagree!

The whole verb is "is located" -- with "is" serving as the auxiliary (helping) verb and "located" being the main part of the verb.

It's a passive verb form.
http://www.englishpage.com/verbpage/activepassive.html

is located

In the sentence "The United States of America is located in North America," both "is" and "located" are verbs.

The main verb of the sentence is "is," which is a form of the verb "to be" and acts as a linking verb. It connects the subject, "The United States of America," with the predicate, "located in North America."

The verb "located" is a past participle form of the verb "to locate." In this sentence, it functions as an adjective, modifying the subject by providing additional information about its position. Specifically, it describes where the United States of America is located - in North America.

To determine the main verb of a sentence, you can ask yourself these questions: What is the action or state being described in the sentence? What word expresses that action or state? In this case, "is" is the main verb showing the state of being, and "located" acts as an additional verb modifying the main verb by providing detail.

is

Sra