9. The principal parts of a verb are A. base form, helping verb, past participle. B. present tense, present participle, past tense, past participle. C. base form, past tense, past participle, future tense. D. present tense, past tense, future tense.
your answer is B. the others do not have four parts and a verb has four principles. im am 100% positive that it is B