there is nothing for it—there is no other choice but to take a particular action:
- There was nothing for it now except to go straight ahead with the plan.
there is nothing in it—
1. there is no significant difference between the people or things in question:
- The choice lies between Jones and Evans, and as far as their respective qualifications go, there’s nothing in it.
2. (of a story, accusation, etc.) it is not true:
- There is nothing in it; the whole story is an absolute invention.
there is nothing to it—
1. it is very easy (of smth. that seems to demand skill):
- I’ll teach Jenny how to ride a bicycle. There’s nothing to it.
2. = there is nothing in it 2:
- If he’s guilty I’ll hound him out of baseball. But I’ve got to know first, and I’m betting there’s nothing to it.