Question

How do you tell what part of speech a word is under classification. How do you tell how each word is used in the sentence under construction?

I will walk and he will ride a bike.

Answer 1

These sites have good explanations:

http://www.uottawa.ca/academic/arts/writcent/hypergrammar/partsp.html

http://members.cox.net/teachro/
Click on Grammar Practice.

http://www.learnenglish.de/grammar/nouncompound.htm
Click on Grammar at the left.

I and he = pronouns, subjects of their respective clauses

will walk and will ride = verbs of their respective clauses

and = conjunction, joining two independent clauses to make a compound sentence

bike = noun, direct object of the verb "ride"

a = article, modifying the noun "bike"