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