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