Question

you have reed the book
past perfect tense​

Answer 1

Answer:

yes its in book 7 Ace Grammer

Answer 2

You had read the book.

Step-by-step explanation:

You have read the book.

The sentence is in present perfect tense,

present perfect tense structure -

sub. + has/have + v³ + obj.

here,

subject - you

v³ - read

object - the book

To change into past perfect tense,

structure of past perfect tense -

sub. + had + v³ + obj.

=> You had read the book.

hope it helps.