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