📚 Year 9 CAIE Spanish: Formula & Theorem Quick Reference | Year 9 CAIE 西班牙语：公式定理速查手册
Welcome to your go-to 'formula sheet' for Year 9 CAIE Spanish. Just like maths and science, Spanish has its own set of reliable patterns and rules that never let you down once you know them. This handbook condenses the most important grammar 'formulae' you need to speak and write accurately, from present-tense conjugation templates to the 'gustar' equation and the building blocks of past and future time frames. Keep it handy for quick revision and confident communication.
欢迎使用 Year 9 CAIE 西班牙语 '公式定理速查手册'。就像数学和科学一样，西班牙语也有一套可靠的模式和规则，一旦掌握就永远不会出错。本手册浓缩了你需要的最重要的语法 '公式'，从现在时的变位模板到 'gustar' 等式，以及过去和将来时间的构建模块。随身携带，以便快速复习、自信表达。
1. The Present Tense Conjugation Blueprint | 现在时变位蓝图
Regular Spanish verbs fall into three families: -ar, -er, and -ir. The present tense is built by removing the infinitive ending and adding the correct pronoun ending. Think of it as plugging numbers into a formula: stem + ending.
规则西班牙语动词分为三类：-ar、-er 和 -ir。现在时的构成方法是去掉不定式词尾，加上相应的人称词尾。你可以把它看作把数字代入公式：词干 + 词尾。
-ar verbs (e.g. hablar – to speak): yo hablo, tú hablas, él/ella/usted habla, nosotros hablamos, vosotros habláis, ellos/ellas/ustedes hablan.
-ar 动词（例如 hablar – 说话）： yo hablo, tú hablas, él/ella/usted habla, nosotros hablamos, vosotros habláis, ellos/ellas/ustedes hablan.
-er verbs (e.g. comer – to eat): yo como, tú comes, él/ella/usted come, nosotros comemos, vosotros coméis, ellos/ellas/ustedes comen.
-er 动词（例如 comer – 吃）： yo como, tú comes, él/ella/usted come, nosotros comemos, vosotros coméis, ellos/ellas/ustedes comen.
-ir verbs (e.g. vivir – to live): yo vivo, tú vives, él/ella/usted vive, nosotros vivimos, vosotros vivís, ellos/ellas/ustedes viven.
-ir 动词（例如 vivir – 居住）： yo vivo, tú vives, él/ella/usted vive, nosotros vivimos, vosotros vivís, ellos/ellas/ustedes viven.
m-changing patterns (e → ie, o → ue, e → i), which you can also memorise as mini-formulas.
不规则动词偏离这个蓝图，但许多遵循可预测的词干变化模式（e → ie, o → ue, e → i），你也可以把这些当作迷你公式来记忆。
2. Noun–Adjective Agreement Law | 名词与形容词性数一致法则
number (singular or plural). Adjectives must match the noun in both gender and number. The 'formula' is: adjective ending = noun's gender-number suffix.
每个名词都有性（阳性或阴性）和数（单数或复数）。形容词必须在性和数上与名词保持一致。'公式' 是：形容词词尾 = 名词的性数后缀。
Masculine singular: -o (el libro rojo – the red book)
阳性单数： -o (el libro rojo – 红色的书)
Feminine singular: -a (la casa blanca – the white house)
阴性单数： -a (la casa blanca – 白色的房子)
Masculine plural: -os (los libros rojos)
阳性复数： -os (los libros rojos)
Feminine plural: -as (las casas blancas)
阴性复数： -as (las casas blancas)
singular/plural changes: el/la estudiante inteligente → los/las estudiantes inteligentes.
以 -e 或辅音结尾的形容词通常只有单复数变化：el/la estudiante inteligente → los/las estudiantes inteligentes。
3. The Ser vs. Estar Decision Equation | Ser 与 Estar 的判定等式
origin, time, possession. ESTAR = location, condition, emotion, ongoing action. Both mean 'to be' but choosing wrong changes the meaning entirely. The formula is: context → which aspect of 'being' you are describing.
SER = 永久身份、来源、时间、所属。ESTAR = 位置、状况、情绪、进行中的动作。两者都是 '是/在'，但选错了会完全改变意思。公式是：语境 → 你正在描述的 '存在' 的哪个方面。
| Uses of SER | Uses of ESTAR |
|---|---|
| Identity: Soy estudiante. (I am a student.) | Location: Estoy en casa. (I am at home.) |
| Origin: Eres de España. (You are from Spain.) | Condition: Está cansado. (He is tired.) |
| Time/date: Son las dos. (It’s two o’clock.) | Emotion: Estoy feliz. (I am happy.) |
| Possession: El libro es mío. (The book is mine.) | Ongoing action: Está lloviendo. (It is raining.) |
Memorise the acronym DOCTOR (Description, Occupation, Characteristic, Time, Origin, Relation) for SER and PLACE (Position, Location, Action, Condition, Emotion) for ESTAR.
记住 SER 的助记词 DOCTOR（描述、职业、特征、时间、来源、关系）和 ESTAR 的助记词 PLACE（位置、地点、动作、状况、情绪）。
4. The 'Gustar' Formula: Reverse Construction | 'Gustar' 等式：反向结构
The verb gustar (to like) does not work like an English verb. It literally means 'to be pleasing to'. The grammatical subject is the thing liked, not the person. The formula: Indirect object pronoun + gusta/gustan + the liked thing(s).
动词 gustar（喜欢）的用法不同于英语。它的字面意思是 '使……喜欢'。语法主语是喜欢的事物，而不是人。公式：间接宾语代词 + gusta/gustan + 喜欢的事物。
Me gusta el chocolate. (I like chocolate.)
Me gustan los perros. (I like dogs.)
Pronouns: me, te, le, nos, os, les. Use gusta for singular things or infinitives, gustan for plural things.
代词：me, te, le, nos, os, les。单数事物或动词原形用 gusta，复数事物用 gustan。
- Me gusta nadar. (I like swimming.)
- Nos gustan las películas. (We like films.)
- ¿Te gusta la música? (Do you like music?)
Other verbs that work like gustar: encantar (to love), interesar (to interest), doler (to hurt).
其他像 gustar 一样使用的动词：encantar（非常喜欢）、interesar（使感兴趣）、doler（使疼痛）。
5. The Immediate Future Equation | 近将来时等式
To talk about what is going to happen, Spanish uses a simple three-part formula: IR (conjugated in present) + a + infinitive. No exceptions, no irregulars in the second part.
要谈论即将发生的事情，西班牙语使用一个简单的三部分公式：IR（现在时变位）+ a + 动词原形。第二部分没有例外，没有不规则。
Voy a estudiar. (I am going to study.)
Vas a comer. (You are going to eat.)
Va a llover. (It is going to rain.)
Vamos a salir. (We are going to go out.)
Van a llegar tarde. (They are going to arrive late.)
This structure is a Year 9 essential and works for any verb once you know the present tense of ir.
这个结构是 Year 9 必须掌握的，只要你掌握了 ir 的现在时，就能用于任何动词。
6. Regular Preterite (Simple Past) Templates | 规则简单过去时模板
The preterite tense is used for completed actions in the past. For regular verbs, the formula is: stem + preterite ending. There are separate endings for -ar verbs and for -er/-ir verbs.
简单过去时用于描述过去已完成的事件。对于规则动词，公式是：词干 + 简单过去时词尾。-ar 动词和 -er/-ir 动词的结尾不同。
-ar endings: -é, -aste, -ó, -amos, -asteis, -aron (hablé, hablaste, habló, hablamos, hablasteis, hablaron)
-ar 结尾： -é, -aste, -ó, -amos, -asteis, -aron (hablé, hablaste, habló, hablamos, hablasteis, hablaron)
-er / -ir endings: -í, -iste, -ió, -imos, -isteis, -ieron (comí, comiste, comió, comimos, comisteis, comieron) | (viví, viviste, vivió, vivimos, vivisteis, vivieron)
-er / -ir 结尾： -í, -iste, -ió, -imos, -isteis, -ieron (comí, comiste, comió, comimos, comisteis, comieron) | (viví, viviste, vivió, vivimos, vivisteis, vivieron)
ging -ir verbs that have a vowel change in the third person (e → i, o → u): dormir → durmió; pedir → pidió. These are part of the formula's extended rules.
注意词干变化的 -ir 动词，其第三人称有元音变化（e → i, o → u）：dormir → durmió; pedir → pidió。这些是公式扩展规则的一部分。
7. Possessive Adjectives: The Ownership Formula | 物主形容词：所属关系公式
Possessive adjectives agree with the thing possessed, not the owner. Think 'mi casa' (my house) – 'mi' is singular feminine because 'casa' is singular feminine. The short forms are placed before the noun, the long forms after.
物主形容词与被拥有的事物一致，而不是与拥有者。比如 'mi casa'（我的房子）—— 'mi' 是单数阴性，因为 'casa' 是单数阴性。短式放在名词前，长式放在名词后。
Short (unstressed) forms: mi(s), tu(s), su(s), nuestro/a(s), vuestro/a(s), su(s)
短式（非重读）： mi(s), tu(s), su(s), nuestro/a(s), vuestro/a(s), su(s)
Long (stressed) forms after the noun: mío/a(s), tuyo/a(s), suyo/a(s), nuestro/a(s), vuestro/a(s), suyo/a(s) – used for emphasis: un amigo mío (a friend of mine).
长式（重读）用于名词后： mío/a(s), tuyo/a(s), suyo/a(s), nuestro/a(s), vuestro/a(s), suyo/a(s) —— 用于强调：un amigo mío（我的一个朋友）。
8. Demonstrative Adjectives: Pointing Formula | 指示形容词：指代公式
Demonstratives indicate distance from the speaker and must match the noun in gender and number. The three-term system works like 'this', 'that', and 'that (far away)'.
指示形容词表示离说话者的距离，并且必须在性和数上与名词一致。这个三级系统类似 '这个'、'那个' 和 '那个（远处的）'。
| Distance | Masculine singular | Feminine singular | Masculine plural | Feminine plural |
|---|---|---|---|---|
| Near (this/these) | este | esta | estos | estas |
| Not so near (that/those) | ese | esa | esos | esas |
| Far away (that/those over there) | aquel | aquella | aquellos | aquellas |
Este libro (this book), esa mesa (that table), aquellos chicos (those boys over there).
Este libro（这本书），esa mesa（那张桌子），aquellos chicos（那边那些男孩）。
9. Direct Object Pronouns: The 'It/Them' Replacement Law | 直接宾语代词：'它/它们' 替代法则
To avoid repeating the noun, direct object pronouns replace it. They agree in gender and number with the thing or person they stand for and are placed before conjugated verbs or attached to infinitives and gerunds.
为了避免重复名词，直接宾语代词用来替代它。它们在性和数上与被替代的事物或人一致，放在变位动词前，或附着在不定式和副动词后。
me (me) | te (you) | lo/la (him, it / her, it) | nos (us) | os (you plural) | los/las (them)
- Compro el libro. → Lo compro. (I buy it.)
- Veo a María. → La veo. (I see her.)
- Voy a leer los libros. → Voy a leerlos / Los voy a leer. (I am going to read them.)
This formula is vital for natural, flowing Spanish and is tested frequently in CAIE reading and writing tasks.
这个公式对于自然流畅的西班牙语至关重要，并且在 CAIE 阅读和写作任务中经常考察。
10. Question Word Trigger Formulas | 疑问词触发公式
All Spanish question words carry an accent mark and are placed at the beginning of the question. Recognising them instantly transforms statements into information-gathering 'formulae'.
所有西班牙语疑问词都带重音符号，并放在问句开头。立即识别它们就能把陈述句变成获取信息的 '公式'。
- ¿Qué? (What?) – ¿Qué haces? (What are you doing?)
- ¿Quién(es)? (Who?) – ¿Quién es? (Who is it?)
- ¿Dónde? (Where?) – ¿Dónde vives? (Where do you live?)
- ¿Cuándo? (When?) – ¿Cuándo llegas? (When do you arrive?)
- ¿Por qué? (Why?) – ¿Por qué estudias español? (Why do you study Spanish?)
- ¿Cómo? (How?) – ¿Cómo estás? (How are you?)
- ¿Cuánto/a(s)? (How much/many?) – ¿Cuántos años tienes? (How old are you?)
- ¿Cuál(es)? (Which?) – ¿Cuál prefieres? (Which one do you prefer?)
Pair them with the correct word order: question word + verb + subject (if needed) + rest.
搭配正确的语序：疑问词 + 动词 + 主语（如有需要）+ 其他。
11. Negation: The 'No' Sandwich Formula | 否定：'No' 三明治公式
In a Spanish negative sentence, 'no' comes directly before the verb. If there is a second negative word (nada, nadie, nunca, tampoco), it usually goes after the verb, but 'no' must stay before.
在西班牙语否定句中，'no' 直接放在动词前。如果有第二个否定词（nada, nadie, nunca, tampoco），它通常放在动词后，但 'no' 必须保持在前面。
No tengo dinero. (I don't have money.) → No tengo nada. (I don't have anything.)
No veo a nadie. (I don't see anyone.)
Nunca como carne. (I never eat meat.) – When 'nunca' comes first, 'no' is not used.
Nunca como carne.（我从不吃肉。）—— 当 'nunca' 放在前面时，不需要 'no'。
This two-part negation is a reliable pattern once you remember the placement rules.
一旦记住了位置规则，这种双重否定就是一个可靠的模式。
12. Stem-Changing Verb 'Equation' Summary | 词干变化动词 '等式' 汇总
Many common verbs change their stem vowel in the present tense except in the 'nosotros' and 'vosotros' forms. The patterns are predictable and can be learned as three simple equations.
很多常用动词的现在时词干元音会变化，但 'nosotros' 和 'vosotros' 形式不变。这些模式是可预测的，可以当作三个简单的等式来学。
- e → ie (cerrar, empezar, entender, querer, tener*): cierro, cierras, cierra, cerramos, cerráis, cierran. *tener has additional irregularities.
- e → ie（cerrar, empezar, entender, querer, tener*）：cierro, cierras, cierra, cerramos, cerráis, cierran。*tener 有不规则变化。
- o → ue (dormir, poder, contar, volver): duermo, duermes, duerme, dormimos, dormís, duermen.
- o → ue（dormir, poder, contar, volver）：duermo, duermes, duerme, dormimos, dormís, duermen。
- e → i (pedir, repetir, servir): pido, pides, pide, pedimos, pedís, piden.
- e → i（pedir, repetir, servir）：pido, pides, pide, pedimos, pedís, piden。
Note the boot shape drawn around the forms that change, excluding 'nosotros' and 'vosotros'. This visual cue helps you select the right stem instantly.
注意变化的那些形式画出来像一个靴子形状，不包括 'nosotros' 和 'vosotros'。这个视觉提示能帮助你立即选出正确的词干。
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