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