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