-- I suspect him of stealing the car.

-- suspect sb. of giving false information 怀疑某人提供假情报

-- suspect sb. of a crime 怀疑某人犯罪

Suspect that…

-- I suspect that his girlfriend hide her true feelings.

-- We suspect they‘ll be a little late. 我们揣想他们会晚来一会儿。

Suspicion n.猜疑, 怀疑

Suspicious adj.可疑的, 引起怀疑的

-- Cats are suspicious of human beings.

Suspect表示一种肯定的语义, Doubt 表示一种否定的语义

Doubt vt.怀疑, 不信, 拿不准(用 that, 往往表示非常怀疑)

-- I doubt the truth of it. 我怀疑它的真实性。

-- I doubt that he will come. 我看他不见得会来。

-- I doubt whether [if] he is at home. 我看他不一定在家。

-- I do not doubt (but) that he can recite it. 我相信他能把它背下来。

-- Can you doubt that he will win? 你不相信他会获胜吗?

-- I doubt what he said. 我不相信他说的话。

Doubtful adj.怀疑的;不信任的

-- It is doubtful that he will come.

Doubtable adj.可疑的, 令人怀疑的

Desert v.(军队中)开小差

-- The soldier deserted his army. 这个士兵开小差。