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