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