📚 IGCSE CAIE German: The Ultimate Formula & Theorem Cheat Sheet | IGCSE CAIE 德语:公式定理速查手册
Many students think of German grammar as a set of strict ‘formulas’ – and they are right. This cheat sheet distils every key rule you need for the IGCSE CAIE German exam into clear, repeatable patterns. From verb position to adjective endings, each section presents a theorem you can apply instantly. Learn these formulas, and you will transform from a hesitant speaker into a confident communicator.
很多学生觉得德语语法就像一套严格的“公式”——这种想法非常正确。本速查手册将 IGCSE CAIE 德语考试所需的每条核心规则提炼成清晰、可复用的模式。从动词位置到形容词词尾,每节都给出了一个即查即用的定理。掌握这些公式,你将从犹豫的表达者蜕变为自信的交流者。
1. The Main Clause Verb Position Formula (V2) | 主句动词位置公式(V2)
In every German main clause (declarative sentence), the conjugated verb must sit in the second position. No matter what comes first – a subject, a time phrase, or an object – the verb always follows it immediately. This is the V2 rule.
在每个德语主句(陈述句)中,变位动词必须占据第二位。无论句首是主语、时间状语还是宾语,动词都紧跟其后。这就是 V2 规则。
Formula: Element₁ + Conjugated Verb₂ + Subject (if not first) + … + Rest
公式:成分₁ + 变位动词₂ + 主语(若不在首位)+ … + 其他成分
- Ich gehe heute ins Kino. (Subject first)
- Heute gehe ich ins Kino. (Adverbial first – subject moves behind verb)
- Ins Kino gehe ich heute. (Object first)
English: I am going to the cinema today. / Today I am going to the cinema. / To the cinema I am going today.
中文:我今天去电影院。/ 今天我去电影院。/ 去电影院我今天去。
The verb does not change its position; only the first element is shifted. This ‘inversion’ is a permanent feature and a favourite in writing tasks.
动词位置不变,只是移动了句首成分。这种“倒装”结构是德语的一大特征,也是写作中的加分点。
2. The Subordinate Clause Verb-Kick Theorem | 从句动词后置定理
When a subordinate conjunction (dass, weil, wenn, obwohl, etc.) appears, the conjugated verb is kicked to the very end of the clause. This rule overrides the V2 order and creates the classic ‘verb-last’ pattern.
当出现从属连词(dass, weil, wenn, obwohl 等)时,变位动词会被“踢”到从句末尾。这条规则覆盖了 V2 顺序,形成经典的“动词居末”模式。
Formula: Connector + Subject + … + Other Elements + Conjugated Verb
公式:连词 + 主语 + … + 其他成分 + 变位动词
- Ich glaube, dass er morgen nach Berlin fährt.
- Sie bleibt zu Hause, weil sie krank ist.
- Wir gehen spazieren, obwohl es regnet. (Here regnet is still at the end, but separable prefix remains attached.)
English: I believe that he is travelling to Berlin tomorrow. / She stays at home because she is ill. / We go for a walk although it is raining.
中文:我相信他明天去柏林。/ 她待在家里,因为她生病了。/ 虽然下雨,我们还是去散步。
Remember: separable prefix verbs (e.g., anrufen) do not split in the subordinate clause; the full verb goes to the end: …, weil ich dich anrufe.
注意:可分动词(如 anrufen)在从句中不分开,完整动词移至末尾:…, weil ich dich anrufe。
3. The Case System Theorem: The Four Pillars | 格系统定理:四大支柱
German uses four cases to mark the function of nouns and pronouns. Knowing them is like knowing the axes of a coordinate system – every ending depends on them. The cases are Nominative (subject), Accusative (direct object), Dative (indirect object), and Genitive (possession).
德语用四个格来标记名词和代词的功能。掌握它们如同掌握坐标系的轴线——所有词尾都以此为基础。这四个格分别是:第一格(主语)、第四格(直接宾语)、第三格(间接宾语)和第二格(所属关系)。
Theorem: The case of a noun phrase is triggered by the verb, preposition, or its role in the sentence. Below is the definite article table, the mother of all endings.
定理:名词短语的格由动词、介词或其在句中的角色触发。下表是定冠词变格表,一切词尾之母。
| Case | Masculine | Neuter | Feminine | Plural |
|---|---|---|---|---|
| Nominative | der | das | die | die |
| Accusative | den | das | die | die |
| Dative | dem | dem | der | den (+n on noun) |
| Genitive | des + (e)s | des + (e)s | der | der |
English: The man gives the child the book. → Der Mann (Nom.) gibt dem Kind (Dat.) das Buch (Acc.).
中文:那个男人给了孩子那本书。→ Der Mann (一格) gibt dem Kind (三格) das Buch (四格)。
Many verbs and prepositions are ‘case tyrants’: helfen, danken, gefallen always take dative; durch, für, gegen always take accusative. Learn them as fixed formulas.
许多动词和介词是“格暴君”:helfen, danken, gefallen 永远接第三格;durch, für, gegen 永远接第四格。请把它们当作固定公式来记忆。
4. Adjective Endings Formula: The Three-Table Matrix | 形容词词尾变化公式:三表矩阵
Adjective endings look chaotic but follow a strict compensation principle. The choice depends on whether a preceding article already shows the case/gender clearly (strong signal) or not (weak signal). Three scenarios emerge: after definite article (weak), after indefinite article/possessive (mixed), and when no article stands before the adjective (strong).
形容词词尾看似混乱,实则遵循严格的补偿原则。选择取决于前面的冠词是否已经清楚地显示出格和词性(强信号)或未显示(弱信号)。由此产生三种情况:定冠词后(弱变化)、不定冠词/物主代词后(混合变化)以及无冠词时(强变化)。
The quick formula: If the article shows the ending, the adjective gets -e or -en; if the article is missing or weak, the adjective must carry the strong ending.
快速公式:如果冠词已显示词尾,形容词就加 -e 或 -en;如果冠词缺失或信号弱,形容词就必须承担强变化词尾。
Strong endings mirror the definite article endings (except genitive masculine/neuter: -en).
强变化词尾与定冠词词尾一致(属格阳/中性除外:-en)。
- Der gute Wein (Nom. Masc. after der → -e)
- Ein guter Wein (Nom. Masc. after ein, no ending on ein → -er)
- Guter Wein (Strong, no article → -er)
- Die guten Weine (Nom. Pl. after die → -en)
English: the good wine / a good wine / good wine / the good wines.
中文:好酒 / 一瓶好酒 / 好酒(泛指)/ 那些好酒。
For IGCSE, memorise the der/die/das table and remember: when in doubt, check whether *der* or *ein* would take the ending – then place it on the adjective if the article is silent.
应对 IGCSE,记住 der/die/das 表格并遵循:如有疑问,看 der 或 ein 会带什么词尾——如果冠词不发声,就把词尾交给形容词。
5. The Modal Verb Equation: Modal + Infinitive | 情态动词等式:情态动词+不定式
Modal verbs (können, müssen, wollen, sollen, dürfen, mögen/möchten) modify the meaning of the main verb. In a main clause, the modal verb becomes the conjugated verb in position 2, and the main verb is pushed to the end in the infinitive form.
情态动词(können, müssen, wollen, sollen, dürfen, mögen/möchten)修饰主动词的含义。在主句中,情态动词充当 V2 位置的变位动词,主动词则以不定式形式被推到句末。
Formula: Subject + Modal Verb (conjugated) + … + Infinitive
公式:主语 + 情态动词(变位)+ … + 不定式
- Ich muss morgen früh aufstehen.
- Sie kann sehr gut schwimmen.
- Wir wollen ins Kino gehen.
English: I must get up early tomorrow. / She can swim very well. / We want to go to the cinema.
中文:我明天必须早起。/ 她游泳很棒。/ 我们想去电影院。
In a subordinate clause, the modal verb goes to the end after the infinitive: …, weil ich früh aufstehen muss. This double infinitive construction appears frequently and is worth internalising as a set formula.
在从句中,情态动词移到不定式之后:…, weil ich früh aufstehen muss。这种双不定式结构频繁出现,值得作为固定公式牢记。
6. The Perfect Tense Formula: haben/sein + Past Participle | 完成时公式:haben/sein + 过去分词
The spoken past (Perfekt) is built with an auxiliary (haben or sein) and the past participle (Partizip II). The auxiliary is conjugated in V2, and the participle sits at the end of the clause.
口语过去时(完成时)由助动词 haben 或 sein 与过去分词(Partizip II)构成。助动词在 V2 变位,分词位于句末。
Formula: Subject + haben/sein (conj.) + … + Partizip II
- Ich habe einen Film gesehen.
- Er ist nach Hause gegangen.
English: I have watched a film. / He has gone home.
中文:我看了一部电影。/ 他回家了。
Past participle formation formula: for regular (weak) verbs: ge + stem + t; for many strong verbs: ge + stem (with vowel change) + en. Verbs ending in -ieren, inseparable prefix verbs, and verbs with foreign roots drop the ge-.
过去分词构成公式:规则(弱)动词:ge + 词干 + t;许多强变化动词:ge + 词干(元音变换)+ en。以 -ieren 结尾的动词、非分离前缀动词以及外来词根动词省略 ge-。
- machen → ge-mach-t
- fahren → ge-fahr-en
- telefonieren → telefoniert
- besuchen → besucht
The sein auxiliary is used with verbs of motion, change of state, and a few exceptions (sein, bleiben, passieren). The rest use haben.
sein 助动词用于运动、状态变化的动词,以及少量例外(sein, bleiben, passieren)。其余动词用 haben。
7. The Future and Conditional Formulas: werden & würde | 将来时与条件式公式:werden & würde
Future tense (Futur I) is formed with werden as the conjugated auxiliary plus the main verb’s infinitive at the end. The conditional (Konjunktiv II) often uses the würde-formula, which mirrors the future but with würde instead of werden.
将来时(Futur I)由变位助动词 werden 加主动词不定式构成,不定式在句末。条件式(Konjunktiv II)常使用 würde 公式,结构与将来时相同,只是用 würde 替代 werden。
Future: Subject + werden (conj.) + … + Infinitive
将来时:主语 + werden(变位)+ … + 不定式
- Ich werde nächstes Jahr Deutsch lernen.
Conditional: Subject + würde (conj.) + … + Infinitive
条件式:主语 + würde(变位)+ … + 不定式
- Ich würde gern nach Deutschland reisen.
English: I will learn German next year. / I would like to travel to Germany.
中文:我明年要学德语。/ 我很想去德国旅行。
The würde-formula is safer than memorising true subjunctive forms for most strong verbs. In IGCSE writing, it is preferred and perfectly standard.
对大多数强动词而言,würde 公式比记忆真正的虚拟形式更安全。在 IGCSE 写作中,它是首选且完全标准的用法。
8. Preposition Case Triggers: The Algorithm | 介词格触发器:算法
Prepositions in German are married to specific cases. Knowing the trigger transforms a guess into a correct case. The algorithm: if the preposition belongs to the ‘always Dative’ or ‘always Accusative’ list, use that case. If it is a two-way preposition (Wechselpräposition), ask: motion or location? Motion (wohin?) → Accusative; Location (wo?) → Dative.
德语介词与特定格绑定。掌握触发器就能变猜测为正确。算法:如果介词属于“永远第三格”或“永远第四格”清单,用该格。如果是两可介词(Wechselpräposition),问自己:运动还是位置?运动(wohin?)→ 第四格;位置(wo?)→ 第三格。
Always-Dative kings: aus, bei, mit, nach, seit, von, zu, gegenüber
永远三格的国王:aus, bei, mit, nach, seit, von, zu, gegenüber
Always-Accusative warriors: durch, für, gegen, ohne, um, bis, entlang
永远四格的战士:durch, für, gegen, ohne, um, bis, entlang
Two-way prepositions: an, auf, hinter, in, neben, über, unter, vor, zwischen
两可介词:an, auf, hinter, in, neben, über, unter, vor, zwischen
Example: Ich hänge das Bild an die Wand (Acc., motion). Das Bild hängt an der Wand (Dat., location).
例子:我把画挂到墙上(四格,运动)。画挂在墙上(三格,位置)。
Treat these as fixed ‘if-then’ functions: if ‘in’ indicates movement, output Accusative; else output Dative. This rule never fails.
将这些视为固定的“如果……则”函数:如果 in 表示运动,输出第四格;否则输出第三格。这条规则从不出错。
9. Personal Pronoun Declension Table | 人称代词变格表
Personal pronouns change drastically across cases and must be memorised as a unit. This table is your quick-access chip for writing and speaking accuracy.
人称代词在各个格中变化显著,必须整体记忆。这张表格是你写作和口语准确度的快取芯片。
| Person | Nominative | Accusative | Dative |
|---|---|---|---|
| 1st sg. | ich | mich | mir |
| 2nd sg. | du | dich | dir |
| 3rd sg. masc. | er | ihn | ihm |
| 3rd sg. fem. | sie | sie | ihr |
| 3rd sg. neut. | es | es | ihm |
| 1st pl. | wir | uns | uns |
| 2nd pl. | ihr | euch | euch |
| 3rd pl./ formal | sie / Sie | sie / Sie | ihnen / Ihnen |
English: I see him (Acc.) – Ich sehe ihn. / I give him the book (Dat.) – Ich gebe ihm das Buch.
中文:我看见他(四格)– Ich sehe ihn。 / 我给他那本书(三格)– Ich gebe ihm das Buch。
Note the pattern: Accusative often resembles the nominative for feminine/neuter/plural; Dative often ends in -m or -r. The formal *Sie* is always capitalised and holds the same form in Acc., but becomes *Ihnen* in Dative.
注意规律:第四格在阴性/中性/复数中常与第一格相同;第三格常以 -m 或 -r 结尾。尊称 *Sie* 永远大写,四格形式相同,但三格为 *Ihnen*。
10. Reflexive Verb Formula: The sich-Pair | 反身动词公式:sich 搭配
Many German verbs require a reflexive pronoun that changes according to the subject. In main clauses, the reflexive pronoun sits as close as possible after the conjugated verb.
很多德语动词要求一个随主语变化的反身代词。在主句中,反身代词尽可能紧跟在变位动词之后。
Formula: Subject + Verb (conj.) + Reflexive Pronoun (Acc./Dat.) + …
- Ich interessiere mich für Musik.
- Er zieht sich schnell an.
English: I am interested in music. / He gets dressed quickly.
中文:我对音乐感兴趣。/ 他很快就穿好衣服。
Common reflexive verbs: sich freuen (to be happy), sich erinnern (to remember), sich ausruhen (to rest). In subordinate clauses, the reflexive pronoun remains immediately after the subject: …, weil ich mich sehr freue.
常见反身动词:sich freuen(高兴),sich erinnern(记得),sich ausruhen(休息)。在从句中,反身代词仍在主语之后:…, weil ich mich sehr freue。
Accusative or dative? If the verb already has an accusative object, the reflexive pronoun is in the dative: Ich wasche mir die Hände.
第四格还是第三格?若动词已有四格宾语,反身代词用三格:Ich wasche mir die Hände(我洗手)。
11. The Sentence Bracket (Satzklammer) Theorem | 句框结构定理
German often builds a ‘bracket’ around the middle of the sentence. The conjugated verb opens the bracket (left bracket), and the separable prefix, past participle, infinitive, or predicate adjective closes it (right bracket). Everything else sits inside.
德语常在句子中部构建一个“框架”。变位动词打开左框,可分前缀、过去分词、不定式或表语形容词关闭右框。其余部分都框在里面。
Left Bracket: Conjugated Verb → Middle Field → Right Bracket: Verb Complement
左框:变位动词 → 中间区 → 右框:动词补充成分
- Ich stehe jeden Morgen um 7 Uhr auf. (Separable prefix closes the bracket)
- Er hat das ganze Buch gelesen. (Past participle closes)
- Wir wollen ins Kino gehen. (Infinitive closes)
English: I get up every morning at 7 o’clock. / He has read the whole book
Published by TutorHao | IGCSE 德语 Revision Series | aleveler.com
更多咨询请联系16621398022(同微信)
屏轩国际教育cambridge primary/secondary checkpoint, cat4, ukiset,ukcat,igcse,alevel,PAT,STEP,MAT, ibdp,ap,ssat,sat,sat2课程辅导,国外大学本科硕士研究生博士课程论文辅导