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