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