Spanish Phrase
Avísale al anfitrión de tus alergias.
Meaning
This sentence is a polite command telling someone to inform the host about the speaker’s allergies. It combines an imperative verb with an indirect object pronoun and a prepositional phrase that specifies the subject of the information.
When to use
Use this phrase when you are traveling, staying at a friend’s house, or attending an event where food will be served and you need the host to be aware of any allergic reactions you might have.
✦Grammar Breakdown
Avísalealanfitrióndetusalergias
Imperativo con pronombre enclítico
En mandatos afirmativos, el pronombre de objeto indirecto se adjunta al final del verbo (avísale = avisa + le).
Contracción ‘al’
‘Al’ es la contracción de la preposición ‘a’ + el artículo definido masculino ‘el’.
Posesivo ‘tus’
‘Tus’ concuerda en número y género con el sustantivo que acompaña (alergias, femenino plural).
Preposición ‘de’ para origen o causa
Se usa ‘de’ para indicar la causa o el tema del aviso: de tus alergias.
🗨In Conversation
¿Tienes alguna restricción alimentaria?
Do you have any dietary restrictions?
Sí, avísale al anfitrión de mis alergias.
Yes, let the host know about my allergies.
✕Common Mistakes
Avisa al anfitrión de tus alergias.
Missing the indirect object pronoun ‘le’; the command must indicate who you are telling.
Avísale al anfitrión de tus alergia.
‘Alergia’ must agree in number with ‘tus’, which is plural.
Avísale al anfitrión tus alergias.
The preposition ‘de’ is required before the noun phrase.
↔Alternatives
Informa al anfitrión sobre tus alergias.
Inform the host about your allergies.
Hazle saber al anfitrión que eres alérgico/a.
Make the host aware that you are allergic.
Comunica al anfitrión tus alergias.
Communicate your allergies to the host.
Cultural Tip
In many Spanish‑speaking cultures, it is considered courteous to tell the host about any allergies before a meal, especially in family gatherings or small‑scale events where the food is homemade. Using the polite imperative with the indirect object pronoun (avísale) shows respect and ensures the message is clear.

