When is the sentence constructed for the unknown
The correct answer to this question is
We build the sentence if the subject is unknown or unknown. And the reverse of the passive is known to the active and is called active, meaning that active is the opposite of passive
The sentence is also constructed for the unknown, when the interest in the object is greater than the interest in the subject, and if we want to write the subject, we put at the end of the passive sentence of the unknown by + subject, but if the subject is a used substance and not a person who actually does put with + subject, and if the subject is a pronoun, the shift turns To a pronoun pronoun the pronoun pronoun is converted to a monument such as He = ≈> him, She => her