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