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