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