Question

What is grammar?how many parts of speech?

Answer 1

english grammar is the structure of expressions in the english language. this includes the structure of words, phrases, clauses and sentences. 
there are eight parts of speech-
1. noun
2. pronoun
3. verb
4. adverb
5. adjectives
6. prepositions
7. conjunctions
8. interjection

Answer 2

English grammar is the structure of expressions in the english language which includes the structure of the phrases, clauses and sentences.
There are  8 parts of speech..