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