现在完成时

定义一：过去做的动作或状态，导致现在...

如果时态是 现在完成时

have / has + v过去分词

当主语是第三人称单数时使用 has

我已经看过这部电影了，let's watch another movie .

i have already seen this movie, let's watch another movie.(现在完成时)

电影十分钟前已经开始了

the movie already began 10 minutes ago (一般过去时)

我已经吃了很多肉了，现在我只想吃x菜

i have had enough meat ,i just want to have some vegetables now.(现在完成时)

我已经喝了我很啤酒了，i can't take another sip.

i have had enough beer, i can't take another sip.

Can I send the file to you tomorrow ?我已经离开办公室了

Can I send the file to you tomorrow ? I have already left the office.

她丈夫已经去世很多年了。

三年前他去世了。

（到现在）电影已经开始十分钟了。

快点，电影已经开始了。

（到现在）我拥有这台车3年了。

快点，我们已经迟到半个小时了。