another question

[hey_friends]

do setting on this computer.
doing setting on this computer

i wanna to ask that which sentence is more correct?
as my question is how do we know when we are going to use an original verb or a verb+ing?

like this:
teach me this question.
teaching me this question.

should we use teach or teaching?i am quite confusing on this kind of question.

i hope that you could give me an explanation.

[Tdol]

Are you telling someone to do it? If so, use do/teach, etc

[hey_friends]

then how about teaching and doing?

[Tdol]

You wouldn't use them alone in the sentences. You could say 'I am doing/teching...'