Question

i will be back. i will back 有什么区别

they will be fight. they will fight 区别在哪

she went to work. she is going to work. she was going to work.有什么不一样

Answer 1

1:I will be back 这个是正确的，后一句是错误的，因为back是副词不能做谓语。
2：they will be fight是错误的，如果此处fight改成fighted那么就是对的表示被动形式。后一句they will fight是正确的，主动语态。
3：这三句主要区别是时态的区分。she went to work.是过去时态，是指发生在过去了的事情,f翻译成，她去工作过了的。she is going to work.用的一般将来时，表示还未反生即将发生的事情。翻译成，他打算去工作。she was going to work.用的过去将来时，表示过去的某个时候的打算。翻译成，她打算过，去工作。

Answer 2

i will be back. i will back 前者强调未来的状态，后者强调动作。下面一句也是如此。
she went to work. she is going to work. she was going to work这几句，第一句是过去时，是说过去她去工作了。第二句是说她现在将要去工作，但是还没去或者说在去工作的路上。最后一句是过去进行时。

追问

she went to work. she was going to work有什么区别 意思都是说他过去去工作

追答

前者强调动作，她过去去工作了。而后者强调状态，表示她曾经去工作过。

Answer 3

1. 必须用动词be, 因为back是一个形容词，不能做谓语。
2. 区别在于：第一句错，第二句对。
3. She went to work. 过去时。She is going to work. 将来时。 She was going to work. 过去将来时。

Answer 4

they will be fight.应该是They will be fighting或是they will be fought.
they will fight 。fight是动词，动词和be动词不可能同时存在。
i will be back. i will back中 back的词性不一样。前一个是副词或是形容词，依据上下文的理解。后一个是动词。
she went to work. she is going to work. she was going to work三个句子的时态不同。分别是：
过去式 将来时 过去将来时