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