Print at 100% for exact sizing. Choose “Save as PDF” in the print dialog for a digital copy. Free sheets include 3 prints per day; everything on the sheet is generated in your browser.
What this sheet practices
The letter r changes the vowel sound in words such as car, bird and storm. Missing-letter items focus attention on the vowel-r pair rather than the whole word shape.
Errors worth watching for
- Spelling 'bird' as 'bed' by ignoring the r.
- Using 'er' where the word needs 'ir' or 'ur'.
How to use it
- Set the difficulty. Easy narrows the range; challenge adds missing values or extra steps.
- Choose how many questions and how many fit on a page. Ten per page is the most readable default.
- Print, or save as PDF. Replace any single question with the circular arrow if it does not fit your group.
At a glance
About this generator
Which patterns are included?
ar, er, ir, or and ur.
Why do er, ir and ur sound the same?
They do in many accents, which is why the correct spelling has to be learned word by word.
Can I print this worksheet on A4 paper?
Yes. Switch Paper to A4 in the settings panel. The layout recalculates the page height and keeps 0.5-inch margins, so nothing is cut off.
Is an answer key included?
The generator always produces an answer key and worked solutions. They are part of the pass; the student sheet can be previewed and printed for free.