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