"Study/Studying" And "Work/Working"?

[VividJailbird]

Hi teachers, I wonder:

1. What's the difference between study and studying, and work and working??? (both study and work can be used as noun, that's why I'm confused)

For example, should I say:

I need to go back to my work.

or

I need to go back to my working

First one sounds better to me but I wonder if the 2nd one is also correct?


And which ones of the following are correct and which are wrong?(multiple choices)

1. I need to catch up with my classmates through hard working

2. I need to catch up with my classmates through hard work

3. I need to catch up with my classmates through hard studying

4. I need to catch up with my classmates through studying hard

---------
Personally I think 1. 2.4. are all correct. Am I right here?

Thanks in advance:)

[Clark]

Either 'through hard work' or 'through working hard'.

[VividJailbird]

Thanks, Clark:)

And here's another problem:

Sound judgement comes from systematic studying and independent thinking.

Are "studying" and "thinking" correctly used here? Or should they be substituted by "study" and "think"??

Thanks:)

[Clark]

Thanks, Clark:)

And here's another problem:



Are "studying" and "thinking" correctly used here? Or should they be substituted by "study" and "think"??

Thanks:)

'Independent thinking' is fine because 'thinking' can function as a noun, but as for 'systematic studying', I would change it to 'systematic studies'.