Final answer:
Spanish infinitives are divided into two parts: the stem and the ending. The stem is the base form of the verb, while the ending indicates the verb's tense and subject.
Step-by-step explanation:
1) Spanish infinitives are divided into two parts: the stem and the ending. The stem is the base form of the verb, which remains unchanged, while the ending indicates the verb's tense and subject. For example, in the infinitive 'hablar' (to speak), 'habl-' is the stem and '-ar' is the ending.
2) The two parts that Spanish infinitives are divided into are the stem and the ending.
3) The ending of a Spanish infinitive indicates the verb's tense and subject. It can be different for each verb conjugation. For example, in the infinitive 'correr' (to run), the ending '-er' indicates that it's a verb from the second conjugation.
4) The stem of a Spanish infinitive is the base form of the verb that remains unchanged. It's the part of the verb that carries its meaning. For example, in the infinitive 'escribir' (to write), 'escrib-' is the stem.