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