sales records or sale records

[allthewayanime]

Why is used ' sales records' instead of 'sale records'( 'cause the first noun of a compound noun is always in the singular form)?

 

[BobK]

Why is used ' sales records' instead of 'sale records'( 'cause the first noun of a compound noun is always in the singular form)?

Is it? You've shown that it's not. They are records of [a number of] sales.

b

 

[Barb_D]

Be careful with any rule you've learned that contains "always" or "never."

There are few rules that these words can really be aplied to.