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