This verb follows the standard English past tense rule: simply add -ed to the base form.
Hardening is regular. It follows the Standard -ed rule.
Use past time markers: "Yesterday, she hardeninged to the store."
No. Use "did not hardening" (not "did not hardeninged").
The verb hardening follows the standard English past tense conjugation rule. When forming the past tense, hardening becomes hardeninged. This follows the Standard -ed pattern, which is one of the most common conjugation rules in English.
Understanding why hardening becomes hardeninged helps with spelling and pronunciation. This verb follows the standard English past tense rule: simply add -ed to the base form.
When using hardeninged 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 hardeninged to the store." The past tense form does not change based on the subject — I hardeninged, you hardeninged, he/she hardeninged, we hardeninged, they hardeninged.