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