[Casiopea]

Originally Posted by jack

Thanks.

I still don't really understand this:

What do you mean by that?

What do these mean?
1. What kinds of chocolates do you have?
2. What kinds of chocolate do you have? ('kinds of ______ (Plural Noun)' this is not incorrect right? What does that plural rule mean?)
3. What kind of fishes do you have? (Is this incorrect? Why? I don't get it.)

Note that, speakers tend not to observe the rule. :wink:

chocolate can be count (e.g. individual chocolates) or non-count (e.g., a slab of chocolate).

Non-count (e.g. a slab of chocolate)
What kind of chocolate do you have?
What kind of fish do you have?

Count (e.g. individual chocolates)
What kinds of chocolates do you have?
What kinds of fishes do you have? (Used by biologists to mean, species)

All the best, :D