Reading Academic Vocabulary Practice Test

Understanding past tense means spotting a verb form that shows the action happened before now. For the verb “to run,” the past tense is irregular and becomes “ran.” So this form indicates a completed action in the past.

The other forms serve different roles: “running” is the present participle (used in progressive tenses like “is running”) or as a noun; “runs” is the present tense form for third-person singular subjects; “run” is the base form used for the present tense with I/you/we/they or for the infinitive.