If a student uses the word "ya'll" the word "ya'll" is considered a part of that student's accent not dialect.

Native English speakers learn syntax through repetition before they learn the parts of speech and rules of grammar.

Children with morphology and syntactic deficits experience difficulty learning and using the rules that govern word formation and phrase/sentence formation. At the word level, these children may not correctly use plural forms or verb tenses.

Specialists in descriptive grammar examine the principles and patterns that underlie the use of words, phrases, clauses, and sentences.

Book is an example of an unvoiced consonant.

The consonants in the words we and you are examples of approximants.

When a doctor gives you a prescription for medication, it often includes directions about how you should take your medication as well as what you should not do when taking your medication. In a similar way, this is an analogy to understanding prescriptive grammar because it tells you how you should speak, and what type of language to avoid.