How can I identify the grammatical name in a sentence and know it's function.

Identification of Grammatical Name and it's Function.

Grammatical name is simply a name assigned to a word or a phrase. Grammatical names can either be noun clause, adverb clause, or adjective clause.

Explanation:

Grammatical functions on the other hand is the function or the role that the word plays. For example: 'What the professor taught was not included in the textbook' here, 'what the professor taught' acts as a noun phrase where 'professor' is a subject and 'followed' is a Verb which shows the function of the noun clause. So identifying the grammatical name and its function is quite easy. The subject of the word acts as a grammatical name, while its action or expressions acts as the functions.