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