Spanish Phrase
Avísanos enseguida si tienes que cancelar.
Meaning
‘Let us know right away if you have to cancel.’ The speaker asks for an immediate notification in case the listener needs to cancel a plan, reservation, or appointment.
When to use
Use this sentence when you are coordinating meetings, events, or bookings and need a prompt heads‑up if the other party cannot attend. It works well in both formal (business) and informal (friend) contexts.
✦Grammar Breakdown
Avísanosenseguidasitienesquecancelar
Imperative + enclitic pronoun
Avísanos is the affirmative imperative of avisar with the enclitic pronoun nos attached; the accent marks the stressed syllable.
Enseguida (adverb)
Enseguida means ‘right away’ or ‘immediately’ and is placed after the verb for emphasis.
Si‑clause (conditional)
The si clause introduces a condition: ‘if you have to cancel’.
tener que + infinitive
Tienes que cancelar expresses obligation; it is more informal than debes cancelar.
Infinitive without article
Cancelar stays in its infinitive form after que; no article is needed.
🗨In Conversation
Avísanos enseguida si tienes que cancelar.
Let us know right away if you have to cancel.
Claro, te avisaré tan pronto como lo sepa.
Sure, I’ll let you know as soon as I find out.
✕Common Mistakes
Avisanos enseguida si tienes que cancelar.
Missing accent on the first ‘i’; the correct form is avísanos.
Avísanos enseguida si tienes cancelar.
The verb ‘tener’ must be followed by ‘que’ before an infinitive.
Nos avisa enseguida si tienes que cancelar.
In the affirmative imperative the pronoun attaches to the verb (avísanos), not placed before it.
↔Alternatives
Infórmanos de inmediato si debes cancelar.
Inform us immediately if you must cancel.
Dinos al instante si vas a cancelar.
Tell us instantly if you’re going to cancel.
Comunícanos pronto si necesitas cancelar.
Communicate to us soon if you need to cancel.
Cultural Tip
In many Spanish‑speaking countries, direct requests like ‘avísanos’ are perfectly polite, especially in professional settings. Adding ‘enseguida’ conveys urgency without sounding demanding. Remember to keep the accent on avísanos; omitting it can change the stress pattern and looks unprofessional.