不好意思，我英文不是怎么很好英语翻译

I'm sorry,my english is not so good.
我们外教教的是：My english is on the way.可是从大学毕业之后，这么多能我没有看到或听到有人这么用。
如果是我，我会说:I just know a little bit english words.
I am not good at english.
I just know a bit.
I am not able to speak english very well.
I need to improve my english.