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