What's the most common double consonant in the Engllsh language?

英文最常用到哪两个子音组合?

Don't forget that consonant sound at the end, that double consonant.

不要忘记最后的辅音，双辅音。

Now the tricky part here is that double consonant sound at the end of the word.

这里比较难的部分就是单词结尾的双辅音。

If it ends in a single vowel followed by a consonant, we double the consonant and add " ER" .

如果是以一个原因和一个辅音结尾，我们就双写辅音字母，再加 “er”。

So, when there is a short vowel sound before a consonant, like a in happy, we often double the consonant after it.

所以，当一个短元音出现在一个辅音前面时，例如 happy 中的a，我们通常会在它后面双拼这个辅音。

If the final three letters of a verb are consonant, vowel, consonant, we double the final consonant before we add i-n-g or e-d.

如果一个动词的最后三个字母是辅音、元音、辅音，那么在添加i-n-g或e-d之前，我们要双拼最后一个辅音。

So you gotta double up some consonants and then swap out some vowels and then add in some extra stuff for no real reason.

所以我们需要重复某些辅音字母，换掉一些元音，再加上点不知所云的东西。

I would love to know why  some words don't double the consonant when you're making them past tense.

我很想知道为什么有些单词在变成过去时时不双写辅音。