Washington State K–12 Learning Standards and Guidelines
WA.L.3. Language Standards
Conventions of Standard English
L.3.1. Demonstrate command of the conventions of standard English grammar and usage when writing or speaking.
L.3.1(a) Explain the function of nouns, pronouns, verbs, adjectives, and adverbs in general and their functions in particular sentences.
L.3.2. Demonstrate command of the conventions of standard English capitalization, punctuation, and spelling when writing.
L.3.2(d) Form and use possessives.