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