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