3) transform the sentences below into negative sentences. 1. i am watching tv - ? 2. i am talking - ? 3. they are drawing - ? 4. he is opening the window - ? 5. angela is cleaning the bathroom - ? 6. we are helping in the garden - ? 7. you are singing - ? 8. it is raining - ? 9. she is joking - ? 10. i am tidying up my room - ?