Which is correct, and why?

a) I am looking forward to meet you.
b)I am looking forward to meet you.

'to' functions as a preposition here. So you have to use -ing form after a preposition.

I am looking forward to meeting you. (Gerund)
I am looking forard to our meeting. (Noun)
Don't "Gerunds" behave like "Nouns"? This is where I become confused.Please help!!
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From American Heritage®Dictionary

NOUN: 1. In Latin, a noun derived from a verb and having all case forms except the nominative. 2. In other languages, a verbal noun analogous to the Latin gerund, such as the English form ending in -ing when used as a noun, as in singing in We admired the choir's singing.

Does that help?
No, I did not get your point.
First, let's take a look at the phrase 'look forward to'. 'to' is not an infinitive in this case, rather, it's a preposition.

Second, what follows a preposition? Hm...the answer is noun.
"I am looking forward to our meeting." (OK, 'our meeting' is a noun phrase.)
"I am looking forward to meeting you." (OK, meet-ING is a gerund used as a noun)

Here are some tips that might help,

look forward to + Noun
look forward to + V-ing (Gerund)

Does this help any?
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I understand the point you made.However, isn't it possible the phrase "to meet" may behave as a adverb and modfiy the phrase "looking forward"?
Hello, Industrious Emotion: smile
It is not correct to use "meet" after "look forward to". "Meet" is not an adverb. And "look forward to" is a transitive phrasal-prepositional verb; it is followed by an object.

Pastel summed it up very well; after "look forward to" you use either:
a. a noun
b. the -ing form of a verb (because "to" is a preposition)

Mirium, thank you. You complete this thread.
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