If given more time,I could have finished the task much better.为什么用given

If given more time,I could have finished the task much better.为什么用given
If given more time,I could have finished the task much better.为什么用given

If given more time,I could have finished the task much better.为什么用given
完整的是if i was given more time 该句是虚拟从句,从句省略了i was

if I was given more time 省略I was 。过去分词做条件状语

作为假使句使用，表明如果给了更多的时间，就可以更好的完成任务；实际并没有给更多的时间，所以也就没有更好完成任务。

说句误人子弟的话，given 理解成被动 意思就是你被给时间 这样比较好理解 如果你看不懂以上所说的语法的话