I will do it soon
Lo haré pronto
I will think about it carefully
Lo meditaré detenidamente
I will solve it as soon as I am able to
Lo resolveré en cuando pueda
I will fix it, rest assured
Lo arreglaré, te lo aseguro
I won’t miss it / them
No lo / los echaré de menos
I will have to admit to it
Lo tendré que admitir
I will grow as a person
Creceré como persona
I will start to
Empezaré a + inf
I won’t stop doing that
No dejaré de + inf
I will try to
Trataré de + inf
I will avoid
Evitaré + inf
I will give up + noun
Renunciaré al*
I will relax
Me relajaré
I will sleep like a log
Me dormiré como un tronco
I will get really bored
Me aburriré un montón
I will be happy for him / her
Me alegraré por él / ella
It will sadden me
Me apenará
It will be pleasant
Me resultará grato
It will be a piece of cake
Será pan comido
It will be as easy as pie
Será coser y cantar
It will be a nightmare
Será una pesadilla
It will be hell
Será un verdadero infierno
It will be horrific
Será espantoso
It will be ridiculous
Será ridículo