This verb follows the standard English past tense rule: simply add -ed to the base form.
Install is regular. It follows the Standard -ed rule.
Use past time markers: "Yesterday, she installed to the store."
No. Use "did not install" (not "did not installed").
The verb install follows the standard English past tense conjugation rule. When forming the past tense, install becomes installed. This follows the Standard -ed pattern, which is one of the most common conjugation rules in English.
Understanding why install becomes installed helps with spelling and pronunciation. This verb follows the standard English past tense rule: simply add -ed to the base form.
When using installed 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 installed to the store." The past tense form does not change based on the subject — I installed, you installed, he/she installed, we installed, they installed.