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