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