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