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