事實上，這並不是規則，但許多人認為是，所以我們應儘量避免這種情況的發生。不過，若改寫句子後，反而使句子變得不自然，治絲益棼，那麼就讓介系詞留在句末吧！例如：
乍看之下，標題是個錯誤的句子，因為它將 look 和 put 這兩個動詞放在同一句。To put together 是個及物的片語動詞，意為「組合，組裝，裝配，拼湊；組織 (隊伍或團體)」，受詞可放在 put 或 together 後面，亦即 put 和 together 是可以分開的，如 Tom helped me put the computer together yesterday. (湯姆昨天幫我組裝電腦)；I put together the desk I bought at Ikea. (我組裝了在 Ikea 購買的書桌)；A team of professionals have been put together to solve the thorny problem. (一個專業人士小組已組織起來解決這個棘手問題)。
然而，He just looks so put together. 是個完全正確的句子，而且在口語中用得頗為頻繁。既然如此，那麼文法上唯一講得通的是 put together 當形容詞用。雖然所有字典，無論是一般字典或是成語、片語或俚語字典，都查不到 put together 當形容詞的用法，但網路上卻有不少相關的例句。Put together 當形容詞用時，意為「一表人才的；儀表堂堂的；相貌出眾的」，尤指穿著得體、很有品味的人，如標題這一句的意思是「他好帥哦！」。再舉一例：John is just so put together. What a handsome man! (約翰太帥了。真是個大帥哥！)。
Put together 也可用在女性身上，當然了，意思就變成「美若天仙的；花容月貌的；如花似玉的」，如 The actress looks so put together and fashionable. (那位女星看起來好美好時髦哦！)；Mary is just so put together. What a beautiful woman! (瑪麗太美了。真是個大美女！)。
英文：sleep in (v.)
說明：這個片語動詞就是表示「晚起床」的意思。
例句：
在「字字斟酌」的 Co-op vs. co-opt 一文中，筆者提到 co-op 這個字加連字號的原因之一，在於防止與 coop 混淆，後者意為「(關家禽或小動物的) 籠子，欄舍」。這裡所說的「籠子，欄舍」是 coop 當名詞用的意思；事實上，coop 還可當動詞用，且往往與 up 連用，意為「禁錮 (人或動物)」，如 They cooped the dog up in a tiny room. (他們把狗關在一個小房間)；He was cooped up in a basement. (他被關在一處地下室)。
然而，coop up 這個片語動詞除了上述的表面意思外，還可用於非身體遭到禁錮，而是別人的要求、外在因素使然、甚至是個人自己的意願而 (被) 困在某個地方或場所的比喻用法，意為「困 (在家裡、宿舍、辦公室或其他地方)」，即時下流行的「宅」的意思，如 The fresh air must feel very good if you have been cooped up in the house for a long time. (如果你宅在家裡很久，呼吸新鮮空氣的感覺一定非常棒)；My girlfriend has been cooped up in her apartment for three days now! (我女友已宅在家裡三天了！)；I’ve been cooped up in this office all day. (我已困在這間辦公室一整天了)。
zero * out +
降至零，取消，移除
The entry was zeroed out of the database.
zip by +
快速通過
The motorcycle zipped by the cars stuck in the traffic jam.
zip it
保持安靜；保持沈默；不發一語
Professor Smith told Mary to zip it, so she said nothing.
zoom off
快速前往某地
Randy rushed out of the building and zoomed off in his car.
本文亦刊載在下列網址：
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yack on
喋喋不休地說，嘮叨 (yack 為 yak 的另一種拼法)
Amy yacked on for more than one hour. (艾美喋喋不休地說了一個多鐘頭)
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whip into +
快速進入
Tom whipped into the convenience store for a packet of cigarettes.
word * up +
給某人資訊、意見等
The lawyer worded her client up before the police interview, so they go very little out of him.
work * over
毆打
The gangsters worked Jack over and robbed him.
work * over
重複，重做
Sam worked it over until he had got it right.
work * over +
仔細地檢查、審視、檢視
The new company worked over the market looking for bargains.
work through +
(透過思考和交談來) 處理、解決、化解或消除 (問題 － 通常指情緒方面的問題)
It took Cindy a long time to work through her anger after she lost her job.
wrap * around/round
用…包/裹/圍
Molly wrapped a scarf around her head because it was so cold.
Luke wrapped his arms around his girlfriend.
I wrapped the cloth round my fingers to keep warm.
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well up
(液體、眼淚) 流出，湧出
Mary felt tears welling up when she heard the news.
Tears welled up when I heard a good friend of mine had died.
well up
(強烈情緒或感受) 湧起
Anger welled up inside me when I saw what they had done.
wheel around/round
(站著時) 快速轉身
Tina wheeled around and smiled at me.
When Kent heard the whistle, he wheedled round to see what was happening.
wheel * out +
提出，推出 (以前使用過多次的解釋、理由或藉口等，因此已沒有公信力或影響力)
Tony wheeled out the same old excuse last time this happened.
They were always wheeling out their similar arguments. (他們老是舊調重彈)
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weigh down on +
使感到責任、工作或負擔沈重
The requirements of Amy’s new job weighted down on her.
weigh in
(旅行出發前) 稱 (行李) 重量；(拳擊、賽馬等比賽前) 稱體重
Brown weighed in at 120 kilos.
weigh in on +
加入爭論或參與討論來對某事發表意見等
Mary weighted in on their immigration policies.
weigh in with +
加入爭論或參與討論來發表意見等
Tony disliked the plan and weighed in with some heavy criticism.
weigh on +
困擾；使煩惱
The decision to study abroad has been weighing heavily on Monica’s mind.
weigh * out +
準確稱出
Could you weigh out 2 kilograms of the fruit for me?
weigh * up +
評估；盤算；權衡；(在做出決定前) 仔細考慮某事
The board of directors weighed the pros and cons up carefully before deciding.
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wave * aside +
對…置之不理
He waved aside my objections and carried on with the plan.
wave * down
揮手示意 (車輛) 停下來
Jack waved the van down and got a lift after the accident.
wave * off
揮手向 (某人) 告別
John waved his girlfriend off at the station.
wave * on
揮手示意繼續向前走
The accident was bad, but the police waved us on.
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