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