To + Infinitive

TO + INFINITIVE:

Use to+infinitive after:
- Some verbs (decide, forget, help, hope, learn, need, offer, plan, pretend, promise, remember, start, try, want, would like, ...) (parecen verbos referentes a acciones, ver comparación con Infinitive+ing)
- Adjectives.(It's easy to find a job. Nice to meet you.)

The negative infinitive is not to+verb.


INFINITIVE PURPOSE:

Use to+infinitive to say why you do something.
Why did you go to the disco? To meet new people.