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