Why is 'would' used in the following sentences instead of 'will'?
- It would be mistake to beat a child.
- I wouldn't care to do her job.
- Would it be easy to teach a child?
Can we use 'will' in place of 'would' above? And in which meaning 'would' is used in those examples? In which situation we can replace 'will' and put 'would' instead?