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