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  1. Spanish (Spain)
  2. /Negative conditional linkers (a menos que)
  3. /a no ser que

a no ser que

a no ser que
unless (with 'ser')
From Lesson 400:Negative conditional linkers (a menos que)·Spanish (Spain)

Usages of a no ser que

Tenemos que reprogramar el viaje, a no ser que aceptes la modificación.
We have to reschedule the trip, unless you accept the modification.
Suelo aplazar mis citas a no ser que sean urgentes.
I usually postpone my appointments unless they are urgent.
No reprogramamos el vuelo a no ser que pagues el cambio.
We won't reschedule the flight unless you pay for the change.
Ayer ellas cancelaron la excursión, pero vamos a salir a no ser que haya un percance.
Yesterday they canceled the excursion, but we are going to go out unless there is a setback.
Vamos a caminar a no ser que el temporal cause un percance.
We are going to walk unless the storm causes a setback.
A no ser que sea compatible, no lo vamos a comprar.
Unless it is compatible, we are not going to buy it.

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