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