L.4.1: Grammar and Usage in Writing and Speaking
Also written as CCSS.ELA-LITERACY.L.4.1 · Cluster: Conventions of Standard English.
The Official Wording
Demonstrate command of the conventions of standard English grammar and usage when writing or speaking.
Common Core State Standards, Grade 4, Language · Read it at the source · Checked October 14, 2026
What L.4.1 Means in Plain English
Fourth graders join ideas with who, whose, which, that, where and when, use progressive tenses like was walking, use can, may and must for conditions, order adjectives as in a small red bag, add prepositional phrases, and fix fragments, run-ons and mix-ups like to, too and two.
Third graders (L.3.1) used irregular verbs, simple tenses and subject-verb agreement, and wrote compound and complex sentences. Fourth grade adds the pieces that make longer sentences work. Fifth grade (L.5.1) moves to the perfect tenses, unwanted tense shifts and pairs like neither and nor.
L.4.1 I Can Statements
- I can use who for people and that or which for things.
- I can put adjectives in the usual order: size, age, then material.
- I can fix a run-on by splitting it or joining it correctly.
L.4.1 Worked Example
One sentence about a sundial in the park with four slips: a verb tense, an adjective order, a relative pronoun and a run-on.
Fix the verb, the adjectives, the relative pronoun and the run-on in this sentence.
Common Mistakes with L.4.1
Who for everything
“That’s the book who won the prize,” or “the town which I was born” where it should be where
Try this: Sort relative words on a chart: who for people, which or that for things, where for places, when for times.
Fragments that look finished
“Because the bus was late.” written as a whole sentence, capital and period included
Try this: Have students read each sentence alone and ask whether it makes sense by itself. A because-clause on its own never does.
Mixing up to, too and two
“We had to many books too carry, so two of us went to.”
Try this: Post a chart: to goes before a place or a verb, too means also or more than enough, two is the number.
Where L.4.1 Fits
Practice L.4.1
Quick Check
- Why is were walking better than walk in the strong sentence?
- Put these adjectives in order: a wooden little old box.
- Fix the run-on: “The bell rang, everyone lined up.”