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