Question

main verb in "he did not to the laundry yesterday"​

Answer 1

Did not is the main verb

Answer 2

The main verb in the sentence did not go  

Explanation:

• The main verb tells the action or a state of being of the subject in an independent clause.
• The main verb comes after the subject
• The main verb shows the feelings, actions, or a state of being.
• In this sentence "he did not go to the laundry yesterday"

he⇒ subject

did not go ⇒ the main verb

laundry ⇒object

yesterday⇒ adjunct

The question is incomplete it must be,

The main verb in "he did not go to the laundry yesterday"​