Final answer:
The infinitive stem of "haber" for the future and conditional tenses is "habr-" and it combines with endings specific to each tense to form phrases like "habré" (I will have) and "habría" (I would have).
Step-by-step explanation:
The infinitive stem of "haber" in the future and conditional tenses is "habr". In both of these tenses, the stem remains unchanged ("habr-") and is followed by the appropriate endings for the future or conditional tenses.
For example, the first person singular in future tense would be "habré" (I will have) and in conditional tense it would be "habría" (I would have). These forms are used in compound tense structures, often in conjunction with the past participle of another verb to form perfect tenses, such as the future perfect or conditional perfect.
The infinitive stem "habr-" in Spanish charts the linguistic course towards future and conditional expressions. In the future tense, envisage actions like "habré" (I will have), projecting a temporal trajectory of possession or existence. Meanwhile, the conditional tense unfolds potential scenarios with constructions like "habría" (I would have), allowing for nuanced exploration of hypothetical circumstances.
This linguistic flexibility enriches communication, providing tools to navigate temporal nuances and delve into speculative realms. Whether envisioning future possibilities or contemplating hypothetical outcomes, the infinitive stem "habr-" shapes the linguistic landscape, opening avenues for nuanced expression within the tapestry of the Spanish language.