To correct the sentences provided:
1. The General as well as his staff was there.
Explanation: In this sentence, "as well as" is a phrase that does not change the subject-verb agreement. Therefore, the correct verb to use is "was" to match the singular subject "General."
2. Plucking flowers is forbidden.
Explanation: In this sentence, "Plucking flowers" is the subject of the sentence and should be treated as a singular noun phrase. Therefore, the verb "is" should be used to match the singular subject.
By making these corrections, the sentences are grammatically accurate and convey the intended meaning clearly.
