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