Past Tense of
sulfur
sulfurred
Regular Consonant Doubling
📄 Regular form · Consonant Doubling

Base Form Sulfur

6Letters
2Syllables
2Vowels
4Consonants
SStarts
REnds

Past Tense Sulfurred

9Letters
3Syllables
3Vowels
6Consonants
SStarts
DEnds

How to Form the Past Tense of "sulfur"

This verb follows the consonant-vowel-consonant (CVC) pattern. The final consonant is doubled before adding -ed to maintain the short vowel sound.

Grammar Tips

  • Double the final consonant before adding -ed.

Common Mistakes

  • Do not forget to double the final consonant.
Frequently Asked Questions

Is sulfur regular or irregular?

Sulfur is regular. It follows the Consonant Doubling rule.

How do you use sulfurred in a sentence?

Use past time markers: "Yesterday, she sulfurred to the store."

Does sulfurred change in negative sentences?

No. Use "did not sulfur" (not "did not sulfurred").

About the past tense of sulfur

The verb sulfur follows the standard English past tense conjugation rule. When forming the past tense, sulfur becomes sulfurred. This follows the Consonant Doubling pattern, which is one of the most common conjugation rules in English.

Understanding why sulfur becomes sulfurred helps with spelling and pronunciation. This verb follows the consonant-vowel-consonant (CVC) pattern. The final consonant is doubled before adding -ed to maintain the short vowel sound.

When using sulfurred in writing, remember that it functions as a past tense verb and typically appears with time markers like yesterday, last week, or ago. For example: "Yesterday, she sulfurred to the store." The past tense form does not change based on the subject — I sulfurred, you sulfurred, he/she sulfurred, we sulfurred, they sulfurred.