This verb follows the consonant-vowel-consonant (CVC) pattern. The final consonant is doubled before adding -ed to maintain the short vowel sound.
Harden is regular. It follows the Consonant Doubling rule.
Use past time markers: "Yesterday, she hardenned to the store."
No. Use "did not harden" (not "did not hardenned").
The verb harden follows the standard English past tense conjugation rule. When forming the past tense, harden becomes hardenned. This follows the Consonant Doubling pattern, which is one of the most common conjugation rules in English.
Understanding why harden becomes hardenned 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 hardenned 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 hardenned to the store." The past tense form does not change based on the subject — I hardenned, you hardenned, he/she hardenned, we hardenned, they hardenned.