I usually go home at six ‘o clock .
I often play computer in the evening.
I always go home late .
I sometimes play the piano .
I am a teacher.
现在进行时：
I am standing in the classroom.
She is taling about you.
He is buging some cards.
They are having a good time.
We are waiting the bus now.
一般过去时：
I did my homework the day before yesterday.
过去进行时:
I was having tea at six 'o clock
一般将来时：
I will buy some CDs tomorrow