PROGRESSIVE ACTIONS.
Yes, I'm an intelligent student.
Are you an intelligent student?
Yes, we study at home.
Do you study at home?
Yes, I have studied English since I was a child.
Have you studied English since you were a child?
No, we are not drinking alcohol.
Are you drinking alcohol?
No, Paul, Mike and Arthur don't study English at all.
Do they study English?
No, we haven't gone to school since last year.
Have you gone to school sice last year?
I'm playing basketball.
What are you doing?
I go to school once a week.
Where do you go once a week?
Harold has eaten vegetables three times a day for two months.
What has Harold eaten for three months?
Samantha's going downtown.
Where is she going?
Harold works at BMW.
Where does he work at?
Sue's climbed the Everest severaltimes.
What has she climbed several times?
Sue is going to the market tomorrow?
When is she going to the market?
Sharon drives her car to work everyday.
How often does she drive her car?
You have taken a shower once a week.
How often have I/we taken a shower?