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