believed, thought
Su historia era demasiado tonta para que alguien la creyera.
His story was too silly for anyone to believe.
No me casé contigo porque creyera que fueras virgen.
I didn't marry you because I believed you were a virgin.
— El conformista (1971)
Estuve hablando mucho tiempo y conseguí que ella me creyera.
I talked for a long time and I managed to make her believe me.
No puedo creer que yo le creyera.
I can't believe I believed him.
No puedo creer que nadie creyera a Mary.
I can’t believe nobody believed Mary.