Now, I'm doing this because I'd like to make it seem like I've done my homework.

我做这些事情，是因为希望我看起来好像有准备。

I've done my training, I've done my homework.

- 我完成了训练，完成了作业。

" If I had done my homework, I would have done better in my test."

” 如果巴里决定早上看报纸， 他会去看足球比赛的。 ” “完成了。 ” “如果我完成了作业， 我的考试会做得更好。 ” 好吗？

But it's possible to say " I already have done my homework" .

但是可以说“我已经完成了作业”。

You can say: " I have done my homework" , but: " I done that" - no.

您可以说：“我已经完成了作业” ，但是：“我已经完成了” -不。

But it can also go at the end of the sentence: " I have done my homework already" .

但它也可以放在句子的末尾：“I have done my homework already”。

It's possible to put it at the end of the sentence: " I have done my homework already" .

可以放在句末：“I have done my homework already”。

And less common, but possible to it before the verb phrase: " I already have done my homework" .

不太常见，但可能在动词短语之前出现：“我已经完成了我的作业” 。

But this is the wrong word, this would be grammatically incorrect. I wouldn't say, for example, " I should of done my homework last night." That's just wrong.

但这是错误的，从语法上说是错的。我不会这样说，例如，我不会说 I should of done my homework last night. 那是错的。

It's less common, but still possible to put it in the front part of the sentence: " I already have done my homework" .

不太常见，但放在句子的前面还是可以的：“I already have done my homework” 。

And before you say that the centres are looking outdated and that consumer tastes and fashions have changed, I've done my homework and the consumer surveys show that people would still come if they had the money.

在你说这些中心过时了，消费者的品味和时尚已经改变之前，我做了调查，据消费者的调查显示，如果人们有钱，他们还是会来的。