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