1. The principal parts of a verb are A. base form, helping verb, past participle. B. base form, past tense, past participle, future tense. C. present tense, present participle, past tense, past participle. D. present tense, past tense, future tense.
The answer is C :) English uses helping verbs and the four principal parts to show the tenses. They are present tense, present participle, past tense, past participle.
