L.2.1
Demonstrate command of the conventions of standard English grammar and usage when writing or speaking.
L.2.1.b
Form and use frequently occurring irregular plural nouns (e.g., feet, children, teeth, mice, fish).
L.3.1
Demonstrate command of the conventions of standard English grammar and usage when writing or speaking.
L.3.1.b
Form and use regular and irregular plural nouns.