Spanish Phrase
Avísanos enseguida si vas a llegar tarde.
Meaning
‘Let us know right away if you’re going to be late.’ The speaker asks the listener to inform them immediately about a possible delay.
When to use
Use this sentence when coordinating meetings, appointments, or events—whether at work, school, or with friends—where punctuality matters and a quick heads‑up is appreciated.
✦Grammar Breakdown
Avísanosenseguidasivasallegartarde
Imperative + pronoun
‘Avísanos’ is the affirmative imperative of ‘avisar’ with the direct‑object pronoun ‘nos’, meaning ‘let us know’.
Enseguida
An adverb meaning ‘right away’ or ‘immediately’, often used to stress urgency.
Conditional clause ‘si’
‘Si’ introduces a condition: ‘if…’.
Periphrastic future
‘Vas a llegar’ uses the verb ‘ir’ + ‘a’ + infinitive to express a near future action (‘you are going to arrive’).
Adverb ‘tarde’
‘Tarde’ means ‘late’; placed at the end of the sentence for emphasis.
🗨In Conversation
Avísanos enseguida si vas a llegar tarde.
Let us know right away if you're going to be late.
Claro, te mando un mensaje en cuanto lo sepa.
Sure, I’ll send you a message as soon as I know.
✕Common Mistakes
Avísame enseguida si vas a llegar tarde.
Using the singular pronoun ‘me’ changes the meaning to ‘let me know’, not the group.
si vas llegar tarde.
The periphrastic future requires the preposition ‘a’ before the infinitive.
Avísanos si vas a llegar tarde.
Learners sometimes omit it, losing the sense of immediacy.
↔Alternatives
Dinos de inmediato si vas a llegar tarde.
Tell us immediately if you’re going to be late.
Infórmanos pronto si vas a llegar tarde.
Inform us soon if you’re going to be late.
Avísanos al instante si vas a llegar tarde.
Notify us instantly if you’re going to be late.
Cultural Tip
In many Spanish‑speaking countries punctuality is a sign of respect. It’s considered courteous to warn the group as soon as you suspect a delay. ‘Enseguida’ conveys urgency, but you can also hear ‘de inmediato’ or ‘al instante’ in the same context.