“证明有罪”常见的英文表达是 "prove guilty" 或 "prove someone's guilt"。
Prove guilty：直接表示“证明（某人）有罪”。例如：The prosecution failed to prove the defendant guilty.（控方未能证明被告有罪。）
Prove someone's guilt：更具体地表达“证明某人的罪行”。例如：The evidence was sufficient to prove his guilt.（证据足以证明他的罪行。）