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