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