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"Should" is an auxiliary verb which is often translated as "deber", and "have to" is a transitive verb phrase which is often translated as "tener que". Learn more about the difference between "should" and "have to" below.
should(
shood
)An auxiliary verb, or helper verb, is a conjugated verb that comes before a main verb and determines the main verb's tense, mood, or aspect (e.g., I have gone.).
have to(
hahf
tu
)A transitive verb phrase is a phrase that combines a verb with a preposition or other particle and requires a direct object (e.g., take out the trash.).