Gerunds and Infinitives

Correct use of the infinitive or gerund


Use of the infinitive with to (e.g to play) and Use of the gerund (-ing form)

INFINITIVES

Verbs Followed by an Infinitive

Example:
She decided to leave work early

Verbs Followed by an Object and an Infinitive

Example

I always allow my daughter to watch TV at night.

After adjectives

Example

 it is very nice to see you

To show purpose (to say why you do something)

Example

I went to the disco to have fun

GERUNDS

Verbs Followed by a Gerund

Example

They enjoyed working on the boat.

Verbs Followed by a Preposition and a Gerund

Example

We concentrated on doing well.

As the subject of the sentence  

Example

Drinking too much alchohol is bad for your health.

After prepositions

Example

He talked to Maria about going to a bar.

http://estudiaingles.blogspot.com/2008/02/correct-use-of-infinitive-or-gerund-uso.html