had vs have (fish and chip shop had/have closed for the day)

English as a Second Language English Vocabulary, Grammar and Idioms
1

I wanted to eat fish for lunch but the fish and chip shop had closed for the day.

I wanted to eat fish for lunch but the fish and chip shop have closed for the day.

2

The second one is wrong, because “have” is written with no verb tense.

3

is ‘closed’ is Verb or nown please?

4

In your sentences “closed” is an adjective.