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