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