1. We have just seen an interesting movie.
2. I have not yet read this book.
3. My mum has already prepared breakfast.
4. My brother has recently written an article.
5. When he came, his sister had already washed the floor.
6. Yesterday by six o'clock in the evening I had done my homework.
7. She will have bought a new dress by the holiday.
8. The Institute will have been finished by me by next year.
9. The works had been written by Tuesday.
10. The exercises have already been translated by me.