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