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