The following sentence has been divided into parts. One of them may contain an error. Select the part that contains the error from the given options. If you don’t find any error, mark ‘No error’ as your answer.
He had been improve / his communication skills in order / to shine in his career.

Correct option is B

The part of the sentence that contains an error is (b) "He had been improve." The error lies in the verb form "improve," which should be in the past participle form "improved" to correctly use the past perfect continuous tense in passive voice.
· Grammatical Rule Used: Past Perfect Continuous Tense in Passive Voice: The correct construction for the past perfect continuous in passive voice requires the verb "to be" followed by the past participle.
· In this case, "had been" should be followed by "improved," not "improve," to correctly describe the ongoing action in the past that was being done to him (his communication skills were being improved).
· Example: He had been taught by some of the best professors in the university.