Question

If you don't do it,we have to ask somebody others to do it 找出错误并改正

Answer 1

照我看，有两点错误
第一：.“don't”不对，既然是if引导的，那就要相应的改变， 我觉得应为“ won't ”
（可是，我看其他人有认为wouldn't 的，所以，建议你问问老师吧，保险，
或者你选一个，结果出来了就知道了，）
第二："somebody"和“others”重复，将"somebody"删除即可
所以，应该为：If you won't do it,we have to ask others to do it
（如果你不做这件事儿，那我们会找其他人来做）

Answer 2

If you don't do it,we will have to ask somebody else to do it

Answer 3

else

Answer 4

不要somebody

Answer 5

不用don't 改用wouldn't