Hi,

The goal of the Tablet PC is to make it possible to control a computer with a pen.

Can we change the structure of the sentence as the folowing?

1- The goal of the Tablet PC is to make controlling a computer with a pen possible.

2- The goal of the Tablet PC is to make it possible controlling a computer with a pen.

3- The goal of the Tablet PC is to make to control a computer with a pen possible.

Thanks.