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