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