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