请教高手.laid about .laid back. laid aside. laid off 的区别是什么~和他们分

laid laid aside什么意思 lay off,be laid off,be laid-off,laid- off各个词的词性是什么（动词还是形容词.. lay laid lie lied lay lain laid 区别是什么? had been laid和was being laid的区别…… be fired,be laid off ,be dismissed的区别 laid是什么意思 get laid lain,laid,lied,lay,lying的区别 请问Lay.laid.lain.lie 的区别 区别：lied /lay / laid / lain laid原形是什么 意思是什么