How many types of infinitives are there in Spanish?

In Spanish, there are three types of infinitives:

1. **Infinitivo Simple (Simple Infinitive)**: This is the basic form of the verb, such as "hablar" (to speak), "comer" (to eat), and "vivir" (to live).

2. **Infinitivo Compuesto (Compound Infinitive)**: This form is used to indicate actions that have occurred in the past and is constructed with the verb "haber" plus the past participle, such as "haber hablado" (to have spoken).

3. **Infinitivo Personal (Personal Infinitive)**: This form can take different endings to express different subjects, often used after prepositions. An example would be "para hablar" (to talk), which can imply a purpose or intention associated with a subject.

So the correct answer is **three**.