情态动词
情态动词的时态变化
重要程度：7 分
<table border="1">
<tr>
<th>情态动词</th>
<th>现在时态</th>
<th>过去时态</th>
<th>将来时态</th>
</tr>
<tr>
<td>can / could</td>
<td>I can swim.</td>
<td>Yesterday, I could swim faster than now.</td>
<td>We will be able to swim better next year.</td>
</tr>
<tr>
<td>may / might</td>
<td>She may come tomorrow.</td>
<td>He might have gone out when you arrived.</td>
<td>They might finish the project by the end of the month.</td>
</tr>
<tr>
<td>must</td>
<td>You must study hard.</td>
<td>She must have studied hard to get such good grades.</td>
<td>(Must is not used for future)</td>
</tr>
<tr>
<td>should</td>
<td>You should eat more vegetables.</td>
<td>He should have eaten more vegetables yesterday.</td>
<td>We should finish this project soon.</td>
</tr>
<tr>
<td>will / would</td>
<td>I will go to the store.</td>
<td>Yesterday, he would help me with my homework.</td>
<td>We will be able to travel next summer.</td>
</tr>
</table>
这段HTML代码展示了情态动词在不同时间状态下的用法，并通过具体的例子来帮助理解。