Your Question:
When you say:
I offer you the option to not travel
the “to” after an option is a preposition or is it the “to particle”. We know that we negate the infinitive by putting “not” before the “to particle”.
Answer:
In this case the “to” is the “particle.”
This is because the correct grammatical construction would be: “I offer you the option not to travel.” Not always comes before the to particle, and whenever to is in front of a verb it is a particle and not a preposition.
Why do we use “to be” with verbs like “met” and “considered”?