Advanced "To - Gerund"

Hi all,

It's my first time being here. Didn't know there is such a great site on English.
I've been wondering since my high school years about the "To-Gerund" stuff.

I've only been taught a few examples (like 'committed to doing', 'look forward to doing') of that without a definite grammar formula of using that. I know it's got something to do with the "subject noun" or "situation" after the "To". But can someone please elaborate more on this ? Many thanks !

Alex

[Soup]

Hi Alex, and welcome.

It has nothing to do with the syntax or the situation. It's about lexis/morphology: committed to and look forward to are set phrases.