have taught和have been taughting的区别

have taught和have been taughting的区别 have been taught 和have been teaching的 区别 have been和have gone的区别 have been 和have gone 的区别 have been 和 has been的区别 will have been doing和have been doing的区别 might have been 和 cound have been的区别 Have been in和have been to的区别? have been to和have been in的区别 have been 和have been to 的区别 have been 和have ever been区别! have been to和have gone to和have been in的区别