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