Чтобы сделать предложение отрицательным надо к вспомогательному глаголу (am, is,are,do,did,does,have,had.will, would и т.д.) добавить частицу not
1.we aren't in london.
2.i am not from russia.
3.he isn't fine.
4.the armchair isn't blue.
5.kate isn't happy.
6.they aren't in the park.
7.mary and liz aren't hungry
8. You aren't funny