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