首先，我们来看几个典型的例子。动词“go”的过去式为“went”，而过去分词则是“gone”。这是一个非常常见的不规则变化，比如句子“I went to the park yesterday, but now I am gone from there.”就体现了这种变化。

另一个例子是动词“eat”。它的过去式是“ate”，过去分词是“eaten”。例如：“She ate an apple this morning, and she has eaten well today.”

再看动词“write”。它的过去式为“wrote”，过去分词是“written”。如：“He wrote a letter last night, and it has been written beautifully.”

此外，动词“sing”的变化也值得注意。其过去式是“sang”，过去分词是“sung”。可以用来造句：“They sang together at the concert, and their voices were sung beautifully.”

还有动词“break”，它在过去的形态中发生了较大的变化。过去式为“broke”，而过去分词则是“broken”。例如：“The vase broke when it fell, and it was broken into pieces.”

最后，动词“teach”也是一个不规则动词。它的过去式是“taught”，过去分词同样是“taught”。如：“He taught me how to play the piano, and I have been taught by him.”

通过以上例子可以看出，英语中的不规则动词在形式上有着各自独特的规律，但并没有固定的模式可以套用。因此，最好的方法就是多读、多写、多听，不断积累和实践。希望这篇简短的总结能够为大家提供一定的帮助。