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