is Money singular or plural, any rules?

[jianchiwei]

"Money is not everything".
- here it is singular
".. and his money are soon gone"
- plural

My question: it the word money just to be used as both, freely? or is there any
rule?
Thank you
Jianchi

[Casiopea]

Welcome, jianchiwei.

[1] Money is not everything.
=> Money is the subject; it's singular, so its verb is singular.

[2]He and his money are soon gone.
=> The subject is He and his money, two nouns, so the verb is plural. Money is singular.

Does that help?

[2006]

One rule is that sums of money are singular. Two hundred dollars is more than I can afford.