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