Spanish Phrase
Si haces cambios, puede que te cobren un extra.
Meaning
The sentence means ‘If you make changes, they might charge you an extra fee.’ It expresses a possible consequence of altering a reservation, contract, or service.
When to use
Use this phrase when you’re discussing possible extra costs with a service provider—e.g., airline tickets, hotel bookings, subscription plans, or any situation where modifications could lead to additional fees.
✦Grammar Breakdown
Sihacescambios,puedequetecobrenunextra.
Si + present indicative
Use 'si' with the present indicative to introduce a real or possible condition.
puede que + subjunctive
The expression 'puede que' always triggers the subjunctive mood to convey uncertainty or possibility.
Indirect object pronoun (te)
The pronoun 'te' indicates that the action of 'cobren' is directed at the listener.
Subjunctive 3rd‑person plural (cobren)
Because the subject is implicit (they), the verb appears in the 3rd‑person plural subjunctive.
Noun phrase 'un extra'
'Un extra' is a colloquial way to refer to an additional charge or fee.
🗨In Conversation
Quiero cambiar la fecha de mi vuelo.
I want to change the date of my flight.
Si haces cambios, puede que te cobren un extra.
If you make changes, they might charge you an extra fee.
✕Common Mistakes
Si haces cambios, puede te cobren un extra.
Missing 'que' prevents the subjunctive; you need 'puede que' to express possibility.
Si haces cambios, puede que te cobrarte un extra.
The verb must be in the subjunctive third‑person plural (cobren) because the subject is implicit 'they'.
Si haces cambios, puede que te cobren un extra.
In formal contexts, 'un cargo adicional' is preferred over the colloquial 'un extra'.
↔Alternatives
Si modificas la reserva, podrían cobrarte un cargo adicional.
If you modify the reservation, they could charge you an additional fee.
En caso de cambios, es posible que haya un suplemento.
In case of changes, there may be a surcharge.
Si alteras el plan, tal vez te cobren un extra.
If you alter the plan, you might be charged an extra.
Cultural Tip
In many Spanish‑speaking countries, 'un extra' is informal but widely understood as an extra charge. When speaking with a formal service (banks, airlines), you might prefer 'un cargo adicional' or 'un suplemento' to sound more professional.