This verb follows the standard English past tense rule: simply add -ed to the base form.
Thumbtack is regular. It follows the Standard -ed rule.
Use past time markers: "Yesterday, she thumbtacked to the store."
No. Use "did not thumbtack" (not "did not thumbtacked").
The verb thumbtack follows the standard English past tense conjugation rule. When forming the past tense, thumbtack becomes thumbtacked. This follows the Standard -ed pattern, which is one of the most common conjugation rules in English.
Understanding why thumbtack becomes thumbtacked helps with spelling and pronunciation. This verb follows the standard English past tense rule: simply add -ed to the base form.
When using thumbtacked 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 thumbtacked to the store." The past tense form does not change based on the subject — I thumbtacked, you thumbtacked, he/she thumbtacked, we thumbtacked, they thumbtacked.