英语过去式的问题比如He said,“We want ————（skate）on the lake. want的句型want to do sth 但是是过去式应该用哪一个?是to skate? 还是to skated

英语过去式的问题比如He said,“We want ————（skate）on the lake. want的句型want to do sth 但是是过去式应该用哪一个?是to skate? 还是to skated 关于一般过去式的问题现在语法多了好多都忘了,特别是过去时比如;1.he said he palyed basketball yesterday.后面的play用不用过去式,为什么、2.he wanted to show me his hat yesterday.其中是want加ed还是show加ed, 关于第三人称 过去式 进行时词语变化问题过去式 第三人称动词如何写?比如 过去式的“她说”是she said 还是 she says?先取哪个?意思就是说 如果第三人称和过去式重叠是 词是变成哪个？ 把下列英语句子改成过去式的：Before leaving,he said:I am sure they are sour. said的过去式 英语对话使用冒号还是逗号比如he said:还是he said, here is W( ) he said He said he would leave tomorrow.为什么leave不用过去式 一句话英语过去式可以用两次吗比如,He think it is good 要把thing,is改为过去式吗 解析英语时态问题He would have said just the same as he had .时态的问题“would have said”与“he had”不知道我说的是否明白, 直接引语变间接引语时,如果主句主语是过去式,从句的一般过去时必须变成过去完成时吗比如He said,My bike was stolen two dags ago.如何变成间接引语. He said he couldn't understand people who talked fast,为什么用过去式?这样的句式有什么规律吗? 问个英语时态的问题过去将来完成时态句型would have done这三个词能分开吗?比如He said he would let me have the book as soon as he had read it这个句子.我觉得在这里面就不是过去将来完成时态了.would let过 英语描述某一种动物要用什么时态?如果这种动物已经灭绝了比如恐龙呢?单复数问题,过去式的问题 he的过去式 he said与he say很多英语文章都写he said ,那什么时候用he said 什么时候用he say?搞不懂两个的区别 我觉得这个英语句子有问题,when he falls down backwards,he keeps his balance neatly.我认为加s的动词应该改为过去式. 宾语从句问题He said “I was born in 1998” 如何变为宾语从句?书上的讲解是主句为一般过去式时，直接引语是一般过去式间接引语就用过去完成时，老师说的是主句是一般过去式时，从句用相应