creo que será mejor que

I think it would be better if

→ creer
phrase Uncommon #12,700
I think it would be better if Used to make a suggestion or recommendation, usually followed by a verb in the subjunctive. The present-tense variant creo que es mejor que has the same meaning.
SP: Creo que será mejor que descanses un poco.
EN: I think it would be better if you rested a little.

Creo que será mejor que nos diga todo.

I think you'd better tell us everything.

Creo que será mejor que te rindas.

I think you'd better give up.

Creo que será mejor que venga a mi oficina.

I think you'd better come to my office.

— Psicosis (1960)

Creo que será mejor que entremos.

I think we'd better go inside.

— El profesional (Léon) (1994)

Creo que será mejor que se vaya de inmediato.

I think it would be better for him to leave immediately.

Creo que será mejor que vuelvas a casa.

I think it would be better for you to go back home.

Ahora creo que será mejor que preparemos la siguiente pelea.

Now I think it would be best if we prepared for the next fight.

— Ip Man (2008)

Creo que será mejor que te acuestes.

I think it would be better for you to go to bed.

Creo que será mejor que veas esto.

I think it would be better for you to see this.

Creo que será mejor que descanses un poco.

I think it would be better for you to get some rest.

Creo que será mejor que salgamos de aquí.

I think we'd better get out of here.

Creo que será mejor que te sientes.

I think it would be better for you to sit down.

Creo que será mejor que le dé una vuelta de prueba.

I think it would be best to give it a test drive.

— Psicosis (1960)

Creo que será mejor que se vaya.

I think you'd better go.

Creo que será mejor que baje.

I think it would be better if I went down.

— Star Trek II: La ira de Khan (1982)