Levels of English

I want to know about the following levels of English. What things are included in these levels of English language?

Basic

Intermediate

Advance

If possible, kindly give a detail explanation.

Thanks in advance

Those are just vague and general terms, Basitpasha, with no standard definitions. Many institutions and textbooks make their own definitions for the purposes of instruction and evaluation, and they usually define more than those 3 levels. For instance, HERE is a description of levels of competence in Russian issued by the Russian Ministry of Education and Science.

Sir Mister Micawber , That means the main and important part of the grammar is the Part of speech? Noun , Adjective , verbs , Advers, Prepositions.

No, not at all, Basitpasha. In fact, I don’t see how your comment is related to our other posts.