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