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