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