Please tell me which of these sentences sounds more natural, though all are grammatically correct:-
-
Should I going playing after studying ?
-
Should I go to play after studying ?
-
What purpose should I go outside for ?
-
For What purpose should I go outside ?
They are not all grammatically correct. These are:
- Should I go shopping/dancing/skiing/swimming/etc after studying?
- Should I go to play/ see a movie / practice piano/etc after studying?
3. What should I go outside for?
- For what purpose should I go outside?
Also, do not leave a space before question marks.
#1, #2 and #3 are all common. The choice of #1 and #2 depends on the verb. #4 is very formal.
After reading the answer, a word struck to my mind and that was: awesome
You’re awesome, surely you’re a very good teacher 
I’m not saying just by the way, I’m serious. In future If I get a chance surely I’d try my best to be your student.
Though I study all the day long even then I want there should be a native speaker whom I can discuss because being a native speaker you know the natural/right way to say something perfectly. I bookmarked your site and I wish, the day will come soon.
Thanks for answering
I got that.
If it’s possible, can you tell me? How many verbs fall in #1 category and #2 so that I never make a mistake again.
I have never seen them listed, MyEfforts, and I don’t think they could be, but I can tell you that the #1 verbs are much more limited: they are the verbs which contain an element of movement in some sense, so that such as these are included:
go bowling
go drinking (i.e. go to different places to drink, probably)
go jogging
go cycling
etc.
What about for what should I go outside? I mean if I can omit the word purpose.