>> 22 Thank you so much. This time, I've learned a lot from your posting.

What a luckey person I am to have got a good English teacher like you !
And what a "kitokuna" person you are to teach me English for nothing !
I've been studying English by myself and never went to a English conversation school.
So I don't know how much cost me to learn it at a place like that. probably too expensive.
Don't send a bill to me after I close this thread,please.

I've read the whole articles on that website.
Try doing a review of the lesson.

I have lived here for thirty years.(jyotai doshi)
She has been playing the piano for thirty years (dosa soshi)

When I arrived at the airport, the plane had already taken off.(past perfect tense)