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