◆我猜想他就是那個扒手。

誤：I suspect him the pickpocket.

正：I suspect him to be the pickpocket.

析：suspect(猜想, 認為)后不接“名詞＋名詞”的結構，但是可接 “名詞＋不定式(通常為 to be)”，且該結構通常可以用從句 來改寫，如上面的誤句也可說成：I suspect that he is the pickpocket. 注：以上結構中的不定式通常是 to be，若用其 它動詞，則通常是完成式或進行式，如：We suspect him to have said so.(我們猜他是那樣說過)，I suspect him to be dying.(我看他快要死了)。

◆她懷疑他拿了她的錢。

誤：She suspected him for taking her money.

正：She suspected him of taking her money.

析：suspect sb of (doing) sth＝猜測某人做某事(注意其中用介 詞 of，不用 for)。如：We suspect him of telling lies.(我們懷疑他說謊)。比較：I suspect him to be the thief. / I suspect him of being the thief. / I suspect that he’s the thief.(我懷疑他就是那個賊)。

◆我對他的動機甚為懷疑。

誤：I’m very suspect about his motives.

正：I’m very suspicious about his motives.

析：suspect 用作動詞，其意＝懷疑，猜測；用作名詞，其意＝嫌 疑犯；用作形容詞，其意＝可疑的。suspicious 是形容詞，其意包括兩個方面：①可疑的(常可與 suspect 互換)；② 懷疑的，多疑的，疑心的(此時不可用 suspect 代之)。