Past Tense of
def
deffed
Regular Consonant Doubling
📄 Regular form · Consonant Doubling

Base Form Def

3Letters
1Syllables
1Vowels
2Consonants
DStarts
FEnds

Past Tense Deffed

6Letters
2Syllables
2Vowels
4Consonants
DStarts
DEnds

How to Form the Past Tense of "def"

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 def regular or irregular?

Def is regular. It follows the Consonant Doubling rule.

How do you use deffed in a sentence?

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

Does deffed change in negative sentences?

No. Use "did not def" (not "did not deffed").

About the past tense of def

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

Understanding why def becomes deffed 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 deffed 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 deffed to the store." The past tense form does not change based on the subject — I deffed, you deffed, he/she deffed, we deffed, they deffed.