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