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