The Future Tense of mantener is used to express what you will keep or will maintain, for example, Mantendré mi promesa. (I will keep my promise.)

Mantener is an e to d stem-changing verb, meaning the e changes to a d in all forms except nosotros and vosotros.

Conjugations

Conjugations of Mantener (to maintain) in the Future Tense tense (Latin American Spanish):

Mantener generally means to maintain or keep something, but has several different meanings in the Future Tense, some of which might surprise you.

To maintain or keep something going: for example, Mantendré mi rutina de ejercicio (I will maintain my exercise routine).

To support or provide for someone: for example, Mantendré a mi familia con mi nuevo trabajo (I will support my family with my new job).

To persist or continue: for example, Mantendré mi posición en el debate (I will maintain my position in the debate).

To keep or preserve something: for example, Mantendremos la tradición familiar (We will keep the family tradition).

To sustain or uphold: for example, Mantendremos el orden en la reunión (We will maintain order in the meeting).

Colloquial usage: To keep someone waiting or make them wait: for example, No me mantendrás esperando toda la noche (You won’t keep me waiting all night).

Examples

Examples of Mantener in the Future Tense

Yo mantendré mi promesa de ayudarte con la mudanza. (I will keep my promise to help you with the move.)

Aunque sea difícil, mantendremos la calma en esta situación. (Although it’s difficult, we will keep calm in this situation.)

El equipo mantendrá su enfoque en ganar el campeonato. (The team will keep their focus on winning the championship.)

¿Mantendrás el secreto que te conté? (Will you keep the secret I told you?)

La empresa mantendrá sus precios bajos durante las rebajas. (The company will keep its prices low during the sales.)

Mis padres mantendrán su rutina de ejercicio incluso durante las vacaciones. (My parents will keep their exercise routine even during the holidays.)

El gobierno mantendrá las fronteras cerradas hasta nuevo aviso. (The government will keep the borders closed until further notice.)

Aunque sea tentador, no mantendremos el hábito de comer comida chatarra. (Although it’s tempting, we won’t keep the habit of eating junk food.)

Los activistas mantendrán su protesta pacífica frente al ayuntamiento. (The activists will keep their peaceful protest in front of city hall.)

¿Mantendrás tu trabajo de medio tiempo mientras estás en la universidad? (Will you keep your part-time job while you’re in college?)

La familia mantendrá la tradición de reunirse en Navidad. (The family will keep the tradition of gathering at Christmas.)

El chef mantendrá en secreto la receta de su plato estrella. (The chef will keep the recipe for their signature dish a secret.)

Aunque sea difícil, mantendré una actitud positiva durante este desafío. (Although it’s difficult, I will keep a positive attitude during this challenge.)

Los científicos mantendrán su investigación sobre la cura para esa enfermedad. (The scientists will keep their research on the cure for that disease.)

Mis amigos y yo mantendremos el contacto aunque vivamos en diferentes ciudades. (My friends and I will keep in touch even though we live in different cities.)

Conjugations with English Translations

Conjugations of Mantener (to maintain) in the Future Tense tense (Latin American Spanish) with English Translations:

This post covers Latin American Spanish. For Castilian Spanish, click here

Synonyms

The Future tense is also known as the Simple Future, Future Simple, Future Tense, Future Indicative, or Will Future in English, and as Futuro Simple, Futuro Imperfecto, Tiempo Futuro, Futuro de Indicativo, or Indicativo Futuro in Spanish.