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