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