Question : Find out the part which contains an error of subject-verb agreement:
The boss of the company as well as his employees are planning to take an action against the people who pelted stones.
Option 1: his employees are planning
Option 2: to take an action against
Option 3: No error
Option 4: The boss of the company as well as
Option 5: the people who pelted stones
Correct Answer: his employees are planning
Solution : With as well as, the farther subject rule is applied. Thus, the verb has to agree with boss, which is singular. The correction thus, is ‘is’.