L.5.1: Use Standard English Grammar
Also written as CCSS.ELA-LITERACY.L.5.1 · 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 5, Language · Read it at the source · Checked October 14, 2026
What L.5.1 Means in Plain English
Fifth graders use the perfect tenses (I had walked, I have walked, I will have walked), keep a sentence from sliding between past and present, pair either with or and neither with nor, and explain what a conjunction, preposition or interjection is doing in a sentence.
Fourth graders (L.4.1) worked on the progressive tenses, relative pronouns, modal verbs and fixing fragments and run-ons. Fifth grade turns to time and order in verbs, showing which action finished first. Sixth grade (L.6.1) moves on to pronouns: case, intensive pronouns and vague references.
L.5.1 I Can Statements
- I can form and use perfect tenses like had walked and will have walked.
- I can keep verb tenses consistent and fix shifts that don’t belong.
- I can explain what conjunctions, prepositions and interjections do, and use either/or pairs.
L.5.1 Worked Example
One sentence with three slips in it. The fix is a tense that shows order, a tense that stays put and a pair that matches.
Fix the verb tenses and the conjunction pair in this sentence.
Common Mistakes with L.5.1
Sliding into the present mid-story
“We walked to the gym, and then Coach says to line up.”
Try this: Have students underline every verb in a paragraph and mark it past or present, then fix any that break the pattern.
Mixing up correlative pairs
“Neither the map or the compass helped.”
Try this: Teach the pairs as locked sets on an anchor chart: either/or, neither/nor, both/and, not only/but also, whether/or.
Skipping the perfect tense
“By Friday I finish the book” instead of “By Friday I will have finished the book”
Try this: Draw a timeline with two marks, ask which action finishes first, and give that action had, have or will have.
Where L.5.1 Fits
Practice L.5.1
Quick Check
- Which verb in the strong sentence is in the past perfect tense, and why is it needed?
- Which correlative conjunction pair does the strong sentence use?
- Fix the tense shift: “Yesterday Maya opens the box and found a puppy.”