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