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