i have a question

[hey_friends]

installed application and do setting on this pc.

why we can not put "do" into this sentence?
may you give me a explanation.thank you

 

[David L.]

The forum gives you an opportunity to practice your English writing skills. Then people are able to help you if you are making any mistakes, so you can learn and improve.
Apparently you are having enough practice writing the shorthand used in emails and text messages.
Could you write your question in English?

 

[hey_friends]

is there any body answer me?