为什么要用getting现在进行时

为什么要用getting现在进行时 getting started.这里为什么getting是现在进行时而started又是过去时? we left there when it is getting dark .为什么用现在进行时? I was having trouble getting along with my parents这里 为什么 要用 过去进行时 而不是现在完成进行时 get ready可以用现在进行时吗?比如 i am getting ready for school I'm getting dressed now.为什么又有ing又有ed?这句是现在进行时还是过去时啊?what are you doing?I'm getting dressed now.为什么又有ing(getting)又有ed(dressed)? the weather is getting warm.为什么用进行时?为什么不用一般现在时呢? How is your english getting on为什么用进行时.get on ...are getting more and more popular...为什么用进行时啊 It 's getting bigger and busier.若此句不是现在进行时 为何get要加ing? 英语造句 现在进行时用throwing造句 wanting enjoying taking making coming giving having getting putting 语法：The snow is getting heavier 中getting是什么成分,是不是表语,它是动名词还是进行时的现在分词? He kicked the snow off his shoes before getting inget为什么要用现在分词形式 I am going tomorrow.为什么要用现在进行时 It's getting coolget是连系动词 为什么还要加is 是现在进行时影响而成吗 可以it get cool He is getting old.请问这句话是现在进行时吗? 求解getting up early is good for your health中为何getting要用现在分词? Ross and Rachel left us a mesagge saying they were getting married.这个句子的结构是怎样的.they were getting married为何要用过去进行时呢?saying they were getting married.这部分是从句吗？