I`m going to study History (改为否定句）

I`m going to study History (改为否定句） I'm going to study physics,chemistry,history.改成否定句,疑问句回答,对ph i'm going to study phyics chemictry history phyics chemictry l'm going to watch tv（改为否定句） i'm going to school by subway改为否定句 mom is going to buy some i'm going to switzerland to study对此句提问 I'm going to take violin lesson.(改为同义句）I'm going to learn___ I'm going to buy a book this afternoon. 改为一般疑问句和否定句. i'm going to visit him next week (改为否定句) I`m going to the supermarket with my mother.请把这句话改为否定句. I'm going to put it in front of window.怎么改为一般疑问句、否定句? I’m going to turn on the radio.(改为否定句)