be动词的未来式 will be/be going to be

Winnie will be (= is going to be) twenty-six next year.

Winnie明年就26岁了。

She will be a beautiful bride. 她会是个美丽的新娘。

When will the wedding be? 婚礼是在什么时候？

The wedding will be tomorrow. 婚礼是在明天。

I hope the weather will be fine tomorrow. 希望明天天气会放晴。

There will be a celebration party in the garden.

庆祝酒会将在花园举行。

be动词的完成式 have/has been

Where have you been these days? 你这几天都到哪儿去了？

Have you been to Hong Kong? 你去过香港吗？

Yes, I've been there at least three times.

有啊，我去过至少三次了。

How long has Gary been here? Gary在这儿有多久了？

He's been here for about twenty minutes. 他来了有差不多20分钟。