Weegy: "Occurred" is past tense.
-An infinitive is an unconjugated verb, such as "to go" or "to occur".
-A present-tense (3rd person singular) verb explains that it is happening now, [ such as in the phrases "it goes" or "it occurs".
-A past tense verb says that something did happen a while ago, such as "went" or "occurred".
-A present participle (also called a gerund) states that the action is not yet complete, but being done now, such as ... (More)