a lot of/ a large number of / a large amount of / plenty of / a great deal of

[Proserpina2000]

Hello everybody;
I have doubts with the following expressions attending to what should follow them, that is, countable or uncountable words, Could anybody help me?

Thanks,

 

[Chris K]

Countable: a lot of / a large number of / plenty of
Uncountable: a lot of / plenty of / a great deal of / a large amount of

You might occasionally hear "a great deal of" before a countable noun, but I wouldn't use it myself.

 

[Proserpina2000]

Thank you very much Chris!