1.一般现在时他常常买东西，he often buys something他们常常买东西，they often buy something在一般现在里面动词一般要用三单式或原形
2，一般过去时动词要用过去式，比如他买了东西，he bought something yesterday，
3在现在进行时里面一般要用Be加上doing的结构，比如他正在买东西，he is buying something
4.是在过去进行时当中，这个be动词呢，改成was were再加上doing，比如昨天这个时候她正在买东西，he was Buying something at this time yesterday
5在一般将来时态当中一般要用will加动词原形结构，比如明天他将要买东西，he will buy something tomorrow
6在现在完成时当中，这个一般要用have或者has加过去分词结构，比如他已经买了东西，he has bought something already.
7，在过去完成时代当中，动词一般要用had加过去分词结构，比如在我出门前他就已经买来了早餐，he had bought breakfast before I went out。
8在过去将来时态当中通常用would加上动词元音写高，比如昨天他告诉我他将要去买东西，he told me yesterday that he would buy something。
9，在现在完成进行时代当中，动词一般要用have has been加doing结构，比如它一直在买东西，he has been buying something。
10过去完成进行时，表示在过去某个动作之前，某的另一个动作已经完成进行着它的结构一般用had been加上doing结构，比如在我来之前他一直在买东西，he had been buying something before I came here。
十一被动语态通常用be动词加过去分词，比如这个衣服被他买了the clothes were bought by him。
