一般现在时,无具体结构,就是动词原形或者三单 E:①I/You/We/They go to school on foot. ②She/He goes to school on foot一般过去时,无具体结构,就是动词的过去式 E:I/You/We/They/She/He went to school on foot一般将来时,结构：①will+do ② am/is/are going to do E: ①I will go to school on foot ②I am going to school on foot 现在进行时,am、is、are+doing E：①I am going to school ②She/He is going to school ③We/They/You are going to school 注：此时的go与be going to结构中意义不同过去进行时：was、were+doing E: ①I/She/He was going to school ②We/You/They were going to school 现在完成进行时:have/has been doing现在完成时:have/has+动词过去分词 过去完成时：had+动词过去分词过去将来时：①would+do ②was/weregoing to do很抱歉,只能帮你到初中阶段
请帮我归纳一下英语的时态用法和例子 16个