CCSS.ELA-Literacy.L.4.1c

ELA4th GradeConventions of Standard English

The Standard

Use modal auxiliaries (e.g., can, may, must) to convey various conditions.

Common Core State Standards for English Language Arts

What This Standard Means

Students need to use words like can, may, must, should, might, and could to show meaning beyond the main verb. They should understand how each word changes the sentence, such as permission, possibility, ability, advice, or requirement.

Mastery looks like choosing the modal that fits the situation and explaining the choice. Students often overuse can for everything, mix up may and might, or miss how must sounds stronger than should. They also need practice hearing how one word changes tone and meaning.

Ways to Teach It

  • Give pairs modal word cards and sentence strips, then have them swap modals and sort the new meanings into permission, possibility, ability, and requirement.
  • Ask students to write three classroom rule sentences using must, may, and should, then explain how each modal changes the tone.
  • Show five sentences with the modal missing and have students choose the best word from can, may, must, could, or might.
  • Bring in a school permission slip or game instructions and have students circle modals, then label what each one shows.

Plan a Lesson for CCSS.ELA-Literacy.L.4.1c

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What This Unlocks

Mastery here sets students up for these next.

Related Standards

Standard text verified against corestandards.org on July 10, 2026.

Page updated July 10, 2026.

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