Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
By is regular. It follows the -ied Conversion rule.
Use past time markers: "Yesterday, she bied to the store."
No. Use "did not by" (not "did not bied").
The verb by follows the standard English past tense conjugation rule. When forming the past tense, by becomes bied. This follows the -ied Conversion pattern, which is one of the most common conjugation rules in English.
Understanding why by becomes bied helps with spelling and pronunciation. Verbs ending in a consonant followed by -y change the -y to -ied in the past tense form.
When using bied 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 bied to the store." The past tense form does not change based on the subject — I bied, you bied, he/she bied, we bied, they bied.