I was writing something down that came to me in a passing while I was watching TV, and I found myself discombobulated with the way one should phrase the notion of letting someone do something in the manner illustrated by the example in the question I posed. I know of a book with the title 'too dangerous to let live', but the sentence I was writing down feel so much intuitive with the second form, that is, having 'be' before the phrase 'let + verb'.
The sentence is,
'Besmirching what I thought to be too pure to be let exist, deflowering what I reckoned to be too beautiful to be let waste'.
Is this sentence grammatically right? Or is this one a better alternative?
'Besmirching what I thought to be too pure to be let to exist, deflowering what I reckoned to be too beautiful to be let to waste'.
The problem here is, I was reminded by that book I mentioned with the title 'Too Dangerous To Let Live' which would then suggest that my sentence is better if phrased this way,
'Besmirching what I thought to be too pure to let exist, deflowering what I reckoned to be too beautiful to let waste'
I also have thought of another alternative which further baffles me,
'Besmirching what I thought to be too pure to be let existed, deflowering what I reckoned to be too beautiful to be let wasted'
So do you have any ideas or insights on which one should be correct? Any answer is very much appreciated!