have a good time,
drive to Daji,
teach sb to do sth
They have a good time in the park. They are having a good time now. They had a good time last Sunday.
He often drives to Daji. He is driving to Daji. Yesterday he drove to Daji.
My father teaches me to cook. My father is teaching me to cook. My father taught me to cook just now.
The boys often play soccer on teh playground. The boys are playing soccer on the playground. The boys played soccer on the playground for an hour.
He always works hard. He is working hard at computer. He worked hard last year.
I often think about buying a MP3. I am thinking about going shopping. I thought about the problem last week.
She usually takes photos on weekends. She is taking photos in the park. She took lot of photos yesterday.
My father fly to Beijing once a week.. My father is flying to Bsijing. My father flew to Beijing this morning.