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