counterfeit sth
及物动词，后面直接接被伪造的对象。
He was arrested for counterfeiting passports.
他因伪造护照被捕。
（扑克）使失效；伪造看似官方或有效的文件,制作仿冒品。；在扑克中,转牌或河牌使牌面出现更强牌型,从而击败对手的牌。；以欺骗为目的的伪造；仿造
To make a copy of something, such as money or documents, with the intent to deceive; to forge.
伪造看似官方或有效的文件,制作仿冒品。
To falsely produce what appears to be official or valid; to produce a forged copy of.
在扑克中,转牌或河牌使牌面出现更强牌型,从而击败对手的牌。
Of a turn or river card, to invalidate a player's hand by making a better hand on the board.
以欺骗为目的的伪造
make a copy of with the intent to deceive
一般现在时
He counterfeits signatures to forge checks.
他伪造签名以开具假支票。
一般过去时
They counterfeited the painting and sold it as an original.
他们仿制了那幅画并以真迹出售。
现在完成时
The police have uncovered a ring that has counterfeited credit cards.
警方已揭露一个伪造信用卡的团伙。
规则变化，过去式和过去分词加-ed，现在分词去e加ing，第三人称单数加s。
He was arrested for counterfeiting money.
他因伪造货币被捕。
用法提示：counterfeiting 是动词的现在分词形式，表示“伪造”。
AI contextual example
They counterfeited designer handbags and sold them online.
他们伪造了名牌手提包并在网上销售。
用法提示：counterfeited 是动词的过去式，表示“伪造了”。
AI contextual example
The company counterfeits official documents to avoid taxes.
这家公司伪造官方文件以逃税。
用法提示：counterfeits 是动词的第三人称单数形式，表示“伪造”。
AI contextual example
及物动词，后面直接接被伪造的对象。
He was arrested for counterfeiting passports.
他因伪造护照被捕。
常用于被动语态，强调某物成为被仿冒的对象。
The documents were counterfeited by an expert.
这些文件被一名专家伪造。
扑克语境中，指转牌或河牌使玩家手牌失效。
The river card counterfeited his hand.
河牌使他的手牌失效。
forge 侧重伪造签名、货币或正式文件，宾语多为具体物品；counterfeit 还可指仿冒商品，范围更广。
fake 更口语、适用范围更广，可接 illness、surprise 等抽象概念，语域比 counterfeit 随意。
falsify 着重改动真实内容而非从无到有制造，常用于数据、账目、证词。
fabricate 着重凭空捏造信息或证据，不用于指仿冒货币或商品。
grammar · medium
易错句子Counterfeit is a serious crime in most countries.
正确表达Counterfeiting is a serious crime in most countries.
这里需要的是表示“伪造这种行为”的名词性主语，英语要用动词 counterfeit 的 -ing 形式 counterfeiting；直接把动词原形 counterfeit 放在主语位置不符合英语构词规则，因为汉语“伪造”可以不加变化直接作名词，学习者容易照搬。
grammar · medium
易错句子The gang counterfeitted thousands of banknotes before they were caught.
正确表达The gang counterfeited thousands of banknotes before they were caught.
以辅音字母结尾的双音节动词，只有重音落在最后一个音节上时才双写该辅音再加 -ed（如 prefer → preferred）；counterfeit 重音在第一音节 /ˈkaʊntɚ-/, 末尾音节不重读，因此直接加 -ed，写成 counterfeited。
grammar · medium
易错句子She counterfeit passports for a living.
正确表达She counterfeits passports for a living.
一般现在时中主语是第三人称单数时，谓语动词必须加 -s；汉语动词没有这种形态变化，学习者常漏加，用 counterfeit 就与主语 she 不一致。
对应‘伪造、仿冒’义项；该动词强调验证或确认物品、文件的真实性，与‘伪造’相对。注意 authenticate 是验证行为，counterfeit 是制作假物的行为，二者并非完全对称。
同样针对‘伪造、仿冒’义项；指检查并确认某事物的真实性或正确性，常与物证、文件搭配使用。与 counterfeit 相比，verify 关注的是真伪判断而非制造行为。
counterfeit 多指仿造货币、品牌商品或证件，强调做出足以乱真的仿制实物；forge 多指伪造签名、文件或艺术品，强调假冒他人署名或笔迹。伪造签名习惯说 forge a signature，一般不说 counterfeit a signature。
fake 更口语、更宽泛，既能指造假实物，也能指假装某种状态，如 fake an injury、fake a smile；counterfeit 较正式，通常只用于仿造货币、商品、证件等实物，不说 counterfeit an illness。
falsify 指篡改已有记录、账目或陈述，使其失真；counterfeit 指从头仿造出假币、假货或假证件。改动账目数字用 falsify the accounts，印制假钞用 counterfeit banknotes。
伪造货币
He was caught trying to counterfeit money in his basement.
他在地下室试图伪造货币时被抓住了。
伪造文件
The forgers used a high-quality printer to counterfeit official documents.
伪造者用高质量打印机伪造官方文件。
仿冒商品
Customs officers seized a shipment of counterfeit goods at the port.
海关官员在港口查获了一批仿冒商品。
伪造纸币
They counterfeited banknotes that were hard to detect.
他们伪造了难以识别的纸币。
伪造签名
She was accused of counterfeiting her boss's signature on the contract.
她被指控在合同上伪造老板的签名。
counter- (against, 相反) + -feit (make/do, 制造)
counter- (against, 相反) + act (行动)
for- (outside, 外部；超出) + -feit (make/do, 制造)
伪造行为常针对货币，制作假币是典型例子。
护照是常见的被伪造证件，用于非法入境或身份欺骗。
签名可能被模仿伪造，用于文件或交易欺诈。
艺术品领域常出现伪造品，以假乱真牟利。
名牌商品常被仿冒，涉及造假和侵权。
Dictionary facts from ECDICT, WIKTIONARY.
伪造护照
The criminal ring specialized in counterfeiting passports for refugees.
这个犯罪团伙专门为难民伪造护照。