It started with that fateful trip, history was never the same afterwards.

Gradually, the salty smell abated, or perhaps they had just become nose-blind to it.

So, there is considerable evidence in favour of drawing a categorial distinction between the preposition for and the complementiser for: they are different lexical items (i.e. words) belonging to different categories.

As young men will, I did my best to appear suave and sophisticated.