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1. I put the police on to him.

2. I put the police onto him.

3. I put the police to him.

4. Can you put me on to a cheap supermarket?

5. Can you put me onto a cheap supermarket?

6. Can you put me to a cheap supermarket?


Could you tell me the differences in meaning, what are correct English, and whether "on to" and "onto" can be used interchangeably in this case.


I think only 2 and 5 are correct English and "on to" seems to be wrong even though "put on to" is listed in some dictionaries, but "put onto" seems to be more usual and logical.

Comments  
fire1I think only 2 and 5 are correct English

They are strange and uncommon.