1) Nick has already packed suitcases.
2) NIck has already watered flowers.
3) Nick has not taken his library book back yet.
4) Nick has already said 'good-buy' to Nigel.
5) Nick has not cleaned his shoes yet.
6) Nick has already called Granny.
7) Nick has already bought some food and drinks.
8) Nick has not cleaned the carrot's cage yet.
9) Nick has not changed the water for the fish yet.
10) Nick has already bought a present for Granny.