Spell r-Controlled Vowels

In words with r-controlled vowels, the letter r changes the vowel sound.

The letters ar can spell the vowel sound you hear in the word car.
The letters er, ir, and ur can spell the vowel sound you hear in the word herd.
The letters or, ore, and oar can spell the vowel sound you hear in the word for.

Memorizing these spellings will help you successfully spell words with r-controlled vowels in your writing.