It’s not always easy to tell whether a noun is singular or plural. Take this example “$5 million was/were enough.”
When I informally polled some writer friends, four out of five voted for “was.” That sounds right to me, too.
The word “dollars” is plural, but “$5 million” becomes what grammarians call a collective noun.
Think of it this way, a portfolio management team is made up of people, but the team is a single entity so you say “The team was” instead of “The team were.”
On collective nouns, a Grammar Girl blog post written by Bonnie Trenga says the following:
Inanimate objects, such as “sugar” or “furniture,” are called mass nouns or uncountable nouns, and are always singular. So you would say, “This sugar is very sweet” or “My furniture is too old.” You can’t say, “This sugar are” or “My furniture are.” If you want to talk about individual grains of sugar or individual pieces of furniture, then you have to say something like “Eight grains of sugar were found” or “These pieces of furniture are new.”
However, as one of my friends and the Grammar Girl blog pointed out, the British treat collective nouns differently. They combine them with plural verbs. No wonder some of us are confused!
Image courtesy of Stuart Miles / FreeDigitalPhotos.net