The word bastarán is the future form of bastar in the third person plural.
See the full bastar conjugation

bastar

Unos pocos textos de la Escritura bastarán para probarlo.
A few texts of Scripture will suffice to prove this.
Por lo tanto, nuestros esfuerzos y nuestra capacidad no bastarán.
Therefore, our efforts and capacity alone will not suffice.
Dos ejemplos sencillos bastarán para corroborar esta afirmación.
Two simple examples will suffice to illustrate this point.
El piso es fácil. Agua y jabón bastarán.
The floor is easy, soap and water will do the trick.
Para hacerlo no le bastarán los discursos retóricos y pulidos.
To do that, fine rhetoric and polished speeches will not be enough.
Está claro que estos dos días no bastarán.
Clearly, these two days will not be enough.
No sé si tres días bastarán.
I don't know if three days will cut it.
No bastarán las medidas dirigidas a proteger únicamente los sistemas financieros estructurados.
Measures aimed at protecting only formal financial systems will not be sufficient.
Tres o cuatro bastarán, ¿no crees?
Three or four ought to be quite enough, don't you think?
Las políticas nacionales por sí solas no bastarán.
National policies alone will not suffice.
No lo estropees, 15 minutos bastarán.
Don't ruin her, 15 minutes will be enough.
Unos pocos pasos bastarán para mejorar fácilmente la calidad de las grabaciones.
With a few steps you can easily improve the quality of your recordings.
La cercanía a Ibiza y la comunicación con esta bastarán para seducir al viajero.
The proximity to Ibiza and communication with this enough to entice the traveler.
Estas medidas son encomiables, pero no bastarán para transformar la sociedad de Rwanda.
These are commendable steps, but it will take more to transform Rwandan society.
En nuestra opinión, seis meses bastarán.
Six months will suffice, in our view.
Unas pocas observaciones bastarán para dar a conocer el carácter de este documento.
A few remarks will suffice to characterize that document.
No son del último modelo, pero bastarán.
This isn't the latest technology, but it should do the job.
Si fallan, los Jedi no bastarán para proteger a la República.
If they do, you must realize... there aren't enough Jedi to protect the Republic.
Esas mantas no bastarán, pasará frío.
Those blankets won't be enough. She could get cold.
Solo bastarán mensajes cortos y cada uno entenderá exactamente sin ningún error de comunicación.
Just short messages will suffice and everyone will understand exactly without any miscommunication.
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