Look at this sentence: The bag of lemon drops costs/cost more than she expected. Should the verb be “costs” or “cost”? Since the subject “bag” is singular, the singular verb “costs” is correct. The number of subjects remains the same in spite of the intervening phrase “of lemon drops.”
A sample of intervening phrases includes:
- As well as
- Along with
- Such as
- In addition to
- For the
- Instead of
- Not the
- The cause of recent floods has been poor drainage.
- The caffeine in coffee as well as sodas triggers migraines.
- Regular exercises along with yoga prevent injuries.
- Drinking water instead of juices leads to better dental health.