Experimenting with/ Experimenting a new structure

[GuilhermeRM]

Hello; Why is the latter expression correct? Thank you.

[5jj]

It isn't.

[GuilhermeRM]

But according to Barron's Book it is: ''Mike read a novel in which the author,experimenting with a new structure, devoted a
separate chapter to each character.''

''experimenting with'' is appointed as correct

[charliedeut]

It is in that context, which you failed to provide in your original post.

[Barb_D]

Your title is "experimenting with/experimenting a new structure"
You asked about the "latter" - which is "experimenting a new structure." The latter is not correct.
There's no problem with the FORMER.