There are quantifiers that can be used with both countable and uncountable nouns. They include enough, no, any, some, a lot of, lots of, most, and all.
Uncountable: I just had enough money to buy her an ice cream.
Uncountable: She screamed for help, but received no help.
Uncountable: It didn’t come with any instructions about assembling it.
Uncountable: She earned the most money in the family.
Uncountable: I have been trying all morning to fix my old computer.
A lot of and lots of
A lot of and lots of mean the same, and they both mean a large quantity of.
- He has a lot of hair on his chest.
- He has lots of hair on his chest.
Both a lot of and lots of can be used before singular uncountable nouns or plural countable nouns.
- A lot of/Lots of sand has got into my shoes. (Uncountable noun)
- I can eat a lot of/lots of grapes when I want to. (Countable noun)
- There was a lot of/lots of rubbish everywhere. (Uncountable noun)
- There were a lot of/lots of people on the beach. (Countable noun)
When we use a lot of/lots of with a plural subject, we use a plural verb.
- A lot of/Lots of replies were received in response to her advertisement.
When we use a lot of/lots of with a singular subject, we use a singular verb.
- A lot of/Lots of false information was given by him to the tax authorities.