Examples on the Infinitive

1.Researchers said children who struggled to write fluently devoted more brain capacity to getting words onto a page.’
(Simple, passive, used as the object)
Pupils with poor handwriting 'do less well in school tests’: The Telegraph, 17 October, 2008

2.‘It seemed an unlikely offer, guided tours of slums so notorious that the average Mumbai citizen is too terrified to set foot in them. Slums where, it is said, you can hire someone to kill your enemy.’
(Simple, passive, used as an adverbial modifier of result)
Alternative tourist trail: Slumming it in Mumbai: The Independent, 25 July, 2006…