远程战略轰炸机的未来:什么是be,been,being?

来源：百度文库编辑：查人人中国名人网时间：2024/05/11 12:22:41

什么是be,been,being?请教我吧谢谢

be be动词原型
been be动词过去分词
being be动词现在分词

be
[bi:; bi]
prep.
是, 在, 存在
[域] Belgium , 比利时
abbr.
[军] Base Ejection, 弹底喷射

been
[bi:n]
vbl.
(be)的过去分词, 到过, 去过, 是, 有, 来过又走了

being
n.
存在, 生命, 人, 本质
art.
在, 有, 是

什么是be,been,being? being=to be(成为）过去分词e,been,being的用法告诉我吧 been是be的过去式吗？稳定的单词是什么？being 和 be的用法如何？ being done, done ,to be done的区别 samplerate could be set ,this may be due to sampleclock being set to external sync谢谢！ Has all that can be done been done? Has all_can be done ? Awhat,done Bthat,been done Cthat,be done Dwhat,already done 什么是be动词???