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