Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
Monopoly is regular. It follows the -ied Conversion rule.
Use past time markers: "Yesterday, she monopolied to the store."
No. Use "did not monopoly" (not "did not monopolied").
The verb monopoly follows the standard English past tense conjugation rule. When forming the past tense, monopoly becomes monopolied. This follows the -ied Conversion pattern, which is one of the most common conjugation rules in English.
Understanding why monopoly becomes monopolied helps with spelling and pronunciation. Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
When using monopolied 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 monopolied to the store." The past tense form does not change based on the subject — I monopolied, you monopolied, he/she monopolied, we monopolied, they monopolied.