"Into" instead of "in to"

[Rachel Adams]

This sentence is from the book "English Phrasal Verbs in Use" by Michael McCarthy and Felicity O'Dell.
"I decided to go in to research, as I wanted to do something creative." Why is it "in to" and not "into" when do you use "in to" instead of "into"?

 

[emsr2d2]

This sentence is from the book "English Phrasal Verbs in Use" by Michael McCarthy and Felicity O'Dell.

"I decided to go in to research, as I wanted to do something creative."

Why is it "in to" and not "into"? When do you use "in to" instead of "into"?

It should be "into". It's either a typo or those writers made an error.

 

[jutfrank]

when do you use "in to" instead of "into"?

Use in to when the in is the particle of a phrasal verb and to is the head of the following preposition phrase. Use into as a preposition heading its own preposition phrase.

 

[Rachel Adams]

Use in to when the in is the particle of the phrasal verb. Use into when the in is the head of a preposition phrase.

Could you please provide an example for both uses?

 

[jutfrank]

1) The witch turned the prince into a frog.
2) The prince turned the witch in to the police.

In 1) into is a preposition heading a preposition phrase, so you write it as one word.
In 2) in is a particle of a phrasal verb (turn in), and the head of the preposition phrase is to. So you need two separate words.