Here is your Free English Lesson "Which form of the verb do I use after look forward to?"
 

1) Tick the correct sentence in each pair.
1 a I'm looking forward to telling you the whole story.
   b I'm looking forward to tell you the whole story.
2 a I don't enjoy walking in the dark.
   b I don't enjoy walk in the dark.

We use to + verb after some verbs (see Unit 19):
I want to change my bed because it is old.

However, we use look forward to + verb + -ing:
I look forward to hearing from you. (not I look forward to hear from you )
We're looking forward to seeing you soon.

This is because to in look forward to is a preposition:
Are you looking forward to the end of term?

We use -ing after both the preposition to and other prepositions such as in, on, for:
I prefer speaking to writing English.
Are you interested in going on the tour?

We also use verb + -ing after verbs such as avoid, enjoy, finish, practice, stop:
We really enjoy being in this class.
I finished writing my diary at half past eleven.

2) Complete the sentences with the correct form of must or have to. Use one word only.
1 Are you looking forward to going ……………… (go) back home?
2 I hope ……………… (spend) more time with my friends after the exams.
3 I'm keen on ……………… (read) books in English.
4 I want ……………… (buy) a new television because mine is broken.
5 Nobody is looking forward to ……………… (do) the test.
6 Thanks for ……………… (help) me with my homework.
7 I look forward to ……………… (receive) your letter.
8 I try ……………… (use) the underground as little as possible.