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