I should already have been mature

i have already been,和i have just been区别 i have already been to beijing I have already been to the zoo. I should have already arrived HK yesterday . all the things should be done have been done already I'm sure have already been in love with you I have already been to beijing 改为否定句 i have already been to ocean park.改为否定句 I have already been to Japan t______ since 2001 I'm already eating and have been for a long I have already been here for 5years =I have been here_____5 I have already been in nanjing I have yet been in nanjing