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