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