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