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