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