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