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