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