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