📚 German Formula & Theorem Quick Reference Manual | 德语公式定理速查手册
In the CAIE Year 12 German examination, grammar acts as the essential 'formulae' and 'theorems' that underpin every sentence you construct. This quick reference manual distils the core rules into a clear, systematic guide, enabling you to recall the correct structures rapidly under timed conditions. Treat these principles as immutable logical frameworks: once internalised, they bring precision to your written and spoken German.
在 CAIE 年级12 德语考试中,语法是支撑每个句子构建的基础“公式”与“定理”。这份速查手册将核心规则浓缩为一份清晰系统的指南,助你在限时条件下快速回忆正确结构。将这些原则视为不可变通的逻辑框架:一旦内化,它们便能为你的书面和口语德语带来精准性。
1. Noun Genders & Definite Articles | 名词性别与定冠词
Every German noun carries one of three grammatical genders, represented by the definite article: der (masculine), die (feminine), das (neuter). These determine the form of subsequent adjectives and pronouns. While there are many exceptions, certain endings provide reliable rules. Nouns ending in -ismus, -ling, -or are usually masculine; those ending in -heit, -keit, -ung, -schaft, -tion are feminine; and those ending in -chen, -lein, -ment, -um are neuter.
每个德语名词都带有三种语法性别之一,由定冠词体现:der(阳性)、die(阴性)、das(中性)。这些性别决定了后续形容词和代词的形式。尽管存在许多例外,但某些名词结尾提供了可靠规则。以 -ismus、-ling、-or 结尾的名词通常为阳性;以 -heit、-keit、-ung、-schaft、-tion 结尾的通常为阴性;以 -chen、-lein、-ment、-um 结尾的通常为中性。
Always learn a noun together with its definite article as a single unit of vocabulary. The plural form must also be memorised, as it generally requires the article die for all genders. Generic plural endings include -e, -er, -en, -s, or an umlaut change to the stem vowel.
请务必将名词与其定冠词作为单一词汇单元一起学习。复数形式也必须记忆,因为所有性别的复数冠词通常统一为 die。普遍的复数词尾包括 -e、-er、-en、-s,或者词干元音发生变音(Umlaut)变化。
| Gender 性别 | Definite Article 定冠词 | Example 示例 |
|---|---|---|
| Masculine 阳性 | der | der Tisch (table) |
| Feminine 阴性 | die | die Lampe (lamp) |
| Neuter 中性 | das | das Buch (book) |
| Plural 复数 | die | die Tische / Lampen / Bücher |
2. The Four Cases & Their Functions | 四大格及其功能
The German case system governs how nouns, pronouns, and articles change according to their function in a sentence. There are four cases: Nominative (subject), Accusative (direct object), Dative (indirect object), and Genitive (possession). Identifying the case is the first step before applying any article or adjective ending formula.
德语的格系统支配着名词、代词和冠词根据其在句中的功能如何变化。共有四个格:主格(主语)、宾格(直接宾语)、与格(间接宾语)和属格(所有关系)。识别格位是应用任何冠词或形容词词尾公式的第一步。
The definite articles inflect sharply across cases. Memorise the pattern der-den-dem-des for masculine, die-die-der-der for feminine, das-das-dem-des for neuter, and die-die-den-der for plural. This table is the bedrock of German grammar.
定冠词在不同格中变化显著。须牢记阳性变化模式 der-den-dem-des,阴性 die-die-der-der,中性 das-das-dem-des,以及复数 die-die-den-der。这张表格是德语语法的基石。
| Case 格 | Masculine 阳性 | Feminine 阴性 | Neuter 中性 | Plural 复数 |
|---|---|---|---|---|
| Nominative 主格 | der | die | das | die |
| Accusative 宾格 | den | die | das | die |
| Dative 与格 | dem | der | dem | den |
| Genitive 属格 | des | der | des | der |
Note that in the dative plural, the noun itself often adds an extra -n unless it already ends in -n or -s. For instance, die Tage becomes an den Tagen. This is a frequent source of examiner scrutiny.
请注意,在与格复数中,名词本身通常额外添加 -n,除非它已经以 -n 或 -s 结尾。例如,die Tage 变为 an den Tagen。这是考官经常关注的一个常见错误点。
3. Present Tense Conjugation | 现在时变位
The present tense is formed by taking the infinitive stem and attaching personal endings. For regular (weak) verbs, remove -en and add: -e, -st, -t, -en, -t, -en. This pattern is a fundamental formula: ich mache, du machst, er/sie/es macht, wir machen, ihr macht, sie/Sie machen.
现在时由不定式词干加上人称词尾构成。对于规则(弱变化)动词,去除 -en 并添加:-e, -st, -t, -en, -t, -en。这一模式是基础公式:ich mache, du machst, er/sie/es macht, wir machen, ihr macht, sie/Sie machen。
Strong verbs undergo a stem-vowel change in the second person (du) and third person singular (er/sie/es). Common shifts include a → ä (e.g., fahren → fährst) and e → i (e.g., helfen → hilfst). These must be learned by heart as they are irregular 'formulae' within the system.
强变化动词在第二人称(du)和第三人称单数(er/sie/es)中发生词干元音变化。常见变化包括 a → ä(如 fahren → fährst)和 e → i(如 helfen → hilfst)。这些变化必须熟记,因为它们是系统内部的不规则“公式”。
If the stem ends in -d, -t, or a consonant cluster like -chn, -ffn, a supporting -e is inserted before the -st and -t endings to aid pronunciation. Example: arbeiten → du arbeitest, er arbeitet.
如果词干以 -d、-t 或辅音群如 -chn、-ffn 结尾,则需在 -st 和 -t 词尾前插入辅助元音 -e 以帮助发音。例如:arbeiten → du arbeitest, er arbeitet。
4. Perfect Tense Construction | 完成时构建
The spoken past is overwhelmingly expressed using the perfect tense. Its formula is: auxiliary verb (haben/sein) + past participle. The auxiliary occupies the second position, while the participle goes to the very end of the clause, forming the classic 'sentence bracket'.
口语中的过去时绝大多数使用完成时来表达。其公式为:助动词(haben/sein)+ 过去分词。助动词占据句中第二位,过去分词则位于从句的最末端,形成经典的“句框结构”。
Regular participles are formed with the formula: ge + stem + t. Example: machen → gemacht. Irregular participles use ge + stem (often changed) + en. Example: fahren → gefahren. Always verify whether the participle ends in -t or -en.
规则过去分词按公式构成:ge + 词干 + t。例如:machen → gemacht。不规则过去分词使用 ge + 词干(常发生变化)+ en。例如:fahren → gefahren。务必核实过去分词以 -t 还是 -en 结尾。
The choice between haben and sein follows a clear theorem: sein applies to verbs denoting a change of state or movement from A to B (e.g., gehen, fahren, aufwachen). haben is used for transitive verbs and most others. Never forget to conjugate the auxiliary to match the subject.
haben 和 sein 的选择遵循一条清晰定理:sein 用于表示状态变化或从 A 到 B 移动的动词(如 gehen, fahren, aufwachen)。haben 用于及物动词和大多数其他动词。切勿忘记根据主语变位助动词。
5. Modal Verbs & The Double Infinitive | 情态动词与双不定式
Modal verbs (dürfen, können, mögen, müssen, sollen, wollen) modify the main verb. In the present tense, the modal takes the conjugated second position, and the main verb appears as an infinitive at the end. Formula: Subject + Modal (conjugated) + … + Main Verb (infinitive). Example: Ich muss meine Hausaufgaben machen.
情态动词(dürfen, können, mögen, müssen, sollen, wollen)用来修饰主要动词。在现在时中,情态动词占据变位后的句第二位,主要动词以不定式形式出现在句末。公式为:主语 + 情态动词(变位)+ … + 主要动词(不定式)。例如:Ich muss meine Hausaufgaben machen。
The perfect tense of a modal construction requires the 'double infinitive' theorem. Instead of a past participle, the modal verb remains in its infinitive form. The formula becomes: Subject + haben (conjugated) + … + Main Verb infinitive + Modal infinitive. Example: Ich habe meine Hausaufgaben machen müssen. This structure is heavily tested in the CAIE examination.
情态动词结构的完成时需要用到“双不定式”定理。情态动词不使用过去分词,而是保留其不定式形式。公式变为:主语 + haben(变位)+ … + 主要动词不定式 + 情态动词不定式。例如:Ich habe meine Hausaufgaben machen müssen。这一结构在 CAIE 考试中常被重点考查。
6. Prepositions & Case Governance | 介词与格的支配
Prepositions are the keys that unlock specific cases. They fall into three categories: prepositions that always take the accusative, those that always take the dative, and two-way prepositions that take accusative for motion (direction) or dative for location.
介词是开启特定格的钥匙。它们分为三类:始终支配宾格的介词、始终支配与格的介词,以及双向介词——表示运动(方向)时支配宾格,表示静止地点时支配与格。
Memorise the accusative-only prepositions using a mnemonic: durch, für, gegen, ohne, um, bis, entlang. Dative-only prepositions include: aus, bei, mit, nach, seit, von, zu, gegenüber. These require the article to switch forms immediately upon use.
用记忆法熟记只支配宾格的介词:durch, für, gegen, ohne, um, bis, entlang。只支配与格的介词包括:aus, bei, mit, nach, seit, von, zu, gegenüber。一旦使用这些介词,冠词形式须立即随之变化。
Two-way prepositions (an, auf, hinter, in, neben, über, unter, vor, zwischen) demand analytical thinking. Ask: Wo? (where?) requires dative. Wohin? (where to?) requires accusative. For example, Ich bin in der Stadt (dative) versus Ich gehe in die Stadt (accusative).
双向介词(an, auf, hinter, in, neben, über, unter, vor, zwischen)需要分析性思维。问一句:Wo?(在哪里?)需用与格。Wohin?(去哪?)需用宾格。例如,Ich bin in der Stadt(与格)对比 Ich gehe in die Stadt(宾格)。
7. Adjective Declension Formulae | 形容词变格公式
Adjective endings are determined by three factors: the gender of the noun, the case, and the type of preceding article (definite, indefinite, or none). This creates three distinct declension tables, but they follow a logical pattern of strong and weak endings.
形容词词尾由三个因素决定:名词的性别、格位以及其前冠词的类型(定冠词、不定冠词或无冠词)。这产生了三套不同的变格表,但它们遵循强变化与弱变化的逻辑模式。
After the definite article (der, die, das), the adjective takes a 'weak' ending, which is uniformly -e or -en. Specifically, nominative singular takes -e; all dative and genitive cases, as well as all plurals, take -en. The article does the heavy lifting, signalling the case clearly.
在定冠词(der, die, das)之后,形容词采用“弱变化”词尾,统一为 -e 或 -en。具体来说,主格单数用 -e;所有与格和属格,以及所有复数形式,都用 -en。此时冠词承担了指示格位的重任。
Without any article (zero article), the adjective must display the 'strong' ending to signal the case. These endings mirror the definitive article endings almost exactly, except for masculine and neuter genitive which use -en instead of -es. Example: kaltes Wasser (strong nominative neuter).
在无任何冠词(零冠词)的情况下,形容词必须展现“强变化”词尾以指示格位。这些词尾几乎完全模仿定冠词的变化,但阳性和中性属格用 -en 而非 -es。例如:kaltes Wasser(强变化主格中性)。
After indefinite articles (ein, kein), a mixed declension applies. It is strong where the indefinite article has no ending (masculine nominative, neuter nominative/accusative), and weak elsewhere. This hybrid is critical for accuracy.
在不定冠词(ein, kein)之后,采用混合变格。在不定冠词没有词尾的地方(阳性主格、中性主/宾格)使用强变化词尾,其他地方则使用弱变化词尾。这种混合形式对准确性至关重要。
8. Subordinating Conjunctions & Word Order | 从属连词与语序
Subordinating conjunctions trigger a fundamental shift in word order known as the 'verb-final' rule. When a clause begins with dass, weil, wenn, obwohl, damit, the conjugated verb is sent to the very end of that subordinate clause. This is a non-negotiable syntactic theorem.
从属连词会触发被称为“动词居末”的基本语序变化。当一个从句以 dass, weil, wenn, obwohl, damit 等开头时,变位动词会被发送到该从句的最末端。这是一条不容商量的句法定理。
For instance, Ich bleibe zu Hause, weil ich krank bin. Note that bin moves to the very last position. The same applies in indirect questions using interrogatives like was, wo, warum when they function as conjunctions. Mastering this rule instantly elevates your writing sophistication in the examination.
例如,Ich bleibe zu Hause, weil ich krank bin。请注意 bin 移到了最后的位置。当疑问词如 was, wo, warum 用作连词引导间接问句时,同样适用这一规则。掌握这条规则能立即提升考试写作的精致度。
The 'Time, Manner, Place' (TMP) rule governs the order of adverbial phrases in a sentence. When multiple elements exist, time normally comes first, followed by manner, and finally place. This yields a natural rhythm: Ich fahre (1) morgen (2) mit dem Zug (3) nach Berlin.
“时间、方式、地点”(TMP)规则支配着句中状语短语的顺序。当存在多个成分时,时间通常最先,其次是方式,最后是地点。这便产生一种自然的节奏:Ich fahre (1) morgen (2) mit dem Zug (3) nach Berlin。
9. Separable & Inseparable Prefix Verbs | 可分与不可分前缀动词
Prefixes alter the meaning of base verbs, and knowing whether they separate is a crucial formula. Separable prefixes (an-, auf-, aus-, ein-, mit-, nach-, vor-, zu-) detach from the main verb in main clauses and move to the final position. Example: Ich rufe dich an presents the 'bracket' form.
前缀能改变基础动词的含义,分清它们是否可分是一项关键公式。可分前缀(an-, auf-, aus-, ein-, mit-, nach-, vor-, zu-)在主句中与主动词分离并移到句末位置。例如:Ich rufe dich an 展示的便是“句框”形式。
In past participles, the -ge- is inserted between the separable prefix and the stem: aufstehen → aufgestanden. In subordinate clauses, the prefix reattaches and the whole unit stands at the end: ..., weil ich früh aufstehe.
在构成过去分词时,-ge- 会插入到可分前缀和词干之间:aufstehen → aufgestanden。在从句中,前缀会重新附着,整个动词单元置于句末:..., weil ich früh aufstehe。
Inseparable prefixes (be-, emp-, ent-, er-, ge-, miss-, ver-, zer-) never detach and do not add -ge- in the past participle. Example: besuchen → besucht. The base meaning shifts internally, and the verb structures remain tight.
不可分前缀(be-, emp-, ent-, er-, ge-, miss-, ver-, zer-)永不分离,且在构成过去分词时不需要添加 -ge-。例如:besuchen → besucht。其基本意义在内部发生转变,动词结构保持紧密。
10. The Subjunctive II (Konjunktiv II) | 第二虚拟式
The Subjunctive II is the theorem of politeness, hypotheticals, and unreal conditions. For most verbs, it is formed using the auxiliary würde plus the infinitive, mirroring the English 'would'. Formula: Subject + würde (conjugated) + ... + infinitive. Example: Ich würde gern ein Auto kaufen.
第二虚拟式是表达礼貌、假设和非现实条件的定理。对大多数动词而言,它借助助动词 würde 加不定式构成,相当于英语中的 'would'。公式为:主语 + würde(变位)+ ... + 不定式。例如:Ich würde gern ein Auto kaufen。
However, core auxiliary and modal verbs have their own real Subjunctive II forms derived from old past tenses, often with an added umlaut. These must be treated as exceptions: haben → hätte, sein → wäre, werden → würde, können → könnte, mögen → möchte. Use the real forms for superior accuracy in formal writing.
然而,核心助动词和情态动词具有自己真正的第二虚拟式形式,它们源自古旧过去时,常带有变音。这些必须作为例外处理:haben → hätte,sein → wäre,werden → würde,können → könnte,mögen → möchte。在正式写作中,使用真实形式以获得更高的准确性。
Conditional sentences using wenn strongly highlight this grammar. In an unreal present condition, both the condition and the result clause use the Subjunctive II. For instance: Wenn ich mehr Zeit hätte, würde ich mehr lesen. The shift to hätte signals the hypothetical nature clearly.
使用 wenn 的条件句强烈凸显了此项语法。在非现实的现在条件句中,条件从句和结果主句都使用第二虚拟式。例如:Wenn ich mehr Zeit hätte, würde ich mehr lesen。转变为 hätte 清晰地表明了其假设性质。
11. Pronoun Declension & Relative Clauses | 代词变格与关系从句
Personal pronouns shift form according to the case. Fixed formulae: ich-mich-mir (I-me-me), du-dich-dir (you-you-you), er-ihn-ihm (he-him-him), sie-sie-ihr (she-her-her), es-es-ihm (it-it-it). Accusative and dative pronoun usage marks the difference between a direct object and a recipient.
人称代词根据格位改变形式。固定公式:ich-mich-mir(我-我-我),du-dich-dir(你-你-你),er-ihn-ihm(他-他-他),sie-sie-ihr(她-她-她),es-es-ihm(它-它-它)。宾格和与格代词的使用标志着直接宾语与接受者之间的区别。
Relative clauses are introduced by relative pronouns that mirror the definite article forms in gender and number, but their case is determined by the relative clause's own function. The formula: der, die, das (and their declined forms). In dative plural, this becomes denen, not den.
关系从句由关系代词引导,这些代词在性和数上模仿定冠词的形式,但其格位由关系从句自身的功能决定。公式为:der, die, das(及其变格形式)。在与格复数中,变为 denen,而非 den。
Example of correct agreement: Der Mann, dem ich das Buch gegeben habe, ist mein Vater. Here, dem is dative masculine because the verb geben takes a dative indirect object. The precision of this linkage is a hallmark of advanced competence.
正确呼应的例子:Der Mann, dem ich das Buch gegeben habe, ist mein Vater。这里 dem 是阳性与格,因为动词 geben 支配一个与格间接宾语。这种连接的精准性是高水准语言能力的标志。
12. Word Order: Time, Manner, Place & Inversion | 语序:时间、方式、地点与倒装
Standard main clause word order follows the 'V2' rule: the conjugated verb is always the second grammatical element. If a sentence begins with anything other than the subject, the subject must move after the verb. This is the 'inversion' theorem. Example: Heute spiele ich Tennis (Today play I tennis).
标准主句语序遵循“V2”规则:变位动词始终是第二个语法成分。如果句子以任何非主语成分开头,主语就必须移到动词之后。这便是“倒装”定理。例如:Heute spiele ich Tennis(今天我打网球)。
The 'Time, Manner, Place' rule dictates the natural sequence of adverbials. Combine inversion with TMP for fluid sentence openers: Am Wochenende fahre ich mit meiner Familie nach London. Note that Am Wochenende (Time) takes position one, triggering the verb to follow immediately.
“时间、方式、地点”规则规定了状语的自然顺序。将倒装与 TMP 结合可以获得流畅的句首表达:Am Wochenende fahre ich mit meiner Familie nach London。注意 Am Wochenende(时间)占据句首,促使动词紧随其后。
Coordinating conjunctions (und, aber, oder, sondern, denn) do not occupy a position, so they do not trigger inversion. The word order after them remains standard with the subject first. This is different from subordinating conjunctions, which send the verb to the end.
并列连词(und, aber, oder, sondern, denn)不占据格位,因此它们不会引发倒装。其后的语序仍为标准的主语在前。这不同于从属连词——从属连词会把动词送到句末。
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