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