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