Berikut ini rumus untuk membuat kalimat pasif dalam present perfect tense :
Positif : subjek + have/has + been + VIII
Negative : Subjek + have/has + not + been + VIII
I have eaten the cake.
I haven’t eaten the cake
Have you eaten the cake?
The cake has been eaten by me.
The cake hasn’t been eaten by me.
Has the cake been eaten by you?
She has done her homework.
She hasn’t done her homework.
Has she done her homework?
Her homework has been done by her.
Her homework hasn’t been done by her.
Has her homework been done by her?
the letter / send
The letter has been sent.
1. the flowers / water
2. the book / read
3. the TV / turn off
4. the car / wash
5. the house / sell