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