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