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