To become avec un adjectif décrit un changement. La traduction en français doit se faire avec devenir ou un verbe spécifique qui décrit ce type de changement.

to become ...    
apparent devenir évident It became apparent that we could not help him.
anxious devenir nerveux He became anxious, because she did not call him.
aware (of) orendre conscience de We became aware of this problem only yesterday.
bankrupt faire faillite They became bankrupt due to the bad management.
fond (of) s´apprécier They became very fond of each other.
indispensable devenir indispensable He worked so hard, he became indispensable.
liable être responsable At the age of 18, people become liable for their action.
popular devenir populaire With his music, he became very popular.
redundant devenir superflu I wanted to avoid becoming redundant in the company.
sober déssoûler Very slowly, he became sober after a week of drinking.
successful avoir du succés Thanks to hard work, he finally became successful.
upset s´exiter I became upset when I heard the news.
valid devenir valable The contract became valid last year.
visible devenir visible The tree became visible in the fog.
void devenir non valable With this declaration, the old agreement becomes void.
worthless devenir inutile The stone became worthless to her.

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