Answer: The phrase "to jump" is an example of a verbal.
Explanation: A verbal is a non-finite verb, that is to say a verb that has not been conjugated and that functions as another part of speech. There are three types of verbals: infinitives, gerunds and participles. An infinitive begins with the word "to", a gerund ends in "-ing" and a participle can end in "-ed", "-d", "-en" "-t" or "-ing". The phrase "to jump" is an infinitive (and also a verbal) because it begins with the word "to" and it includes the base form of the verb ("jump").
