Look forward to... ?

[forum_mail]

Howdy!

Everytime I see "look forward to" in various sentences, a second verb is always in the continious form. My question is - can we use it in non-continious, simple, basic form ?

and if so, then what would be the difference between :

1) I look forward to seeing you again.
2) I look forward to see you gain.

Another thing :

Can we use "looking" ? For instance

1) I'm looking forward to seeing you again.
2) I'm looking forward to see you again. (this one is incorrect, isn't it ?)

Can anyone explain the whole thing ?

thanks,

best wishes,

[Tdol]

You can say:
I look forward to seeing you.
I am looking forward to seeing you.

There's no real difference. 'To see' is wrong in both cases.