用正在进行时（＋ING）造句

肯定句:
I'm working.
Lincoln is translating a book now.
He is speaking English much mor fluently than he used to.
The boy is jumping with joy.
Someone is Knocking

否定句:
be后加not

一般疑问句:
be提前

特殊句:
What are you doing now?Michael.
Where are you going?
What are you waiting for?
When are you starting?
How are you liking Beijing?

找本语法书,一堆...部分摘自薄冰

I am playing.
I am eating.
I am talking.
......

否定句 I'm don't boy. I'm sing a song. I'm go to school.
I'm go to the gym. I'm play the basketball.

肯定句The boy is jumping with joy. I'm working.
Lincoln is translating a book now. He is speaking English much mor fluently than he used to.Someone is Knocking .

一般疑问句 Are you help me? Are you doing now? Are you go to school. Are you go to Beijing? Are you like pizz?

特殊疑问句Where are you going? Wh