Question

You"ll know all about it. (Change the voice)

Answer 1

All of it will be known to/by you.

Hope it helps..

Answer 2

In a sentence with an active voice, the subject performs the action which is denoted by the verb. In other words, the subject is the doer of the verb's action. Whereas in a passive voice, the subject is not active but by the verb is acted upon.

Passive voice is the voice used to show an interest in the object or person who experienced the action rather upon the action performer. In passive voice, a subject is an important thing.

Therefore, the above sentence in passive voice would be written as:

All about that will be known by you.