Identify the sentence with correct inversion.
- A. Never I have seen such a crowd.
- B. Never have I seen such a crowd.
- C. Never seen I have such a crowd.
- D. Never I saw such a crowd.
Explanation
When a negative adverb such as never, seldom, rarely or hardly begins a sentence, the subject and auxiliary invert as they would in a question. The same applies to not only, no sooner and little did he know. Without the inversion the sentence is ungrammatical in formal English.