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Intermediate

Conditionals

How if-clauses express hypothetical, probable, and impossible situations in Spanish, English and Chinese.

Compare languages

English uses three main conditional patterns. Spanish uses indicative or subjunctive depending on probability. Chinese keeps the same word order and uses particles or context to show hypothetical meaning.

Overview

Conditionals express what happens — or would happen — under certain circumstances.

Spanish: Uses the indicative for real conditions and the subjunctive for hypothetical ones. The subjunctive is required in both the if-clause and the result clause for counterfactuals.
English: Uses three main patterns (first, second, third conditional) plus mixed conditionals. No subjunctive, but uses past tense forms to indicate unreality.
Chinese: Has no special conditional verb forms. Uses 如rú果guǒ (if) + normal word order, with 就jiù (then) optionally marking the result.

Spanish

Spanish conditionals divide cleanly into real (indicative) and unreal (subjunctive + conditional).

Real conditions (indicative)

When the condition is possible or likely:

Si llueve, me quedo en casa. (If it rains, I stay home.)
Si vienes, tendrás comida. (If you come, you will have food.)

Rule: Both clauses use indicative. The result can be present, future, or imperative.

Hypothetical conditions (subjunctive + conditional)

When the condition is unlikely or contrary to fact:

Si tuviera dinero, viajaría. (If I had money, I would travel.)
Si supiera la verdad, lo entendería. (If I knew the truth, I would understand.)

Rule: If-clause uses imperfect subjunctive. Result uses conditional.

Past counterfactuals (pluperfect subjunctive + conditional perfect)

When the condition was not met in the past:

Si hubiera estudiado, habría aprobado. (If I had studied, I would have passed.)
Si me hubieras llamado, habría venido. (If you had called me, I would have come.)

Rule: If-clause uses pluperfect subjunctive. Result uses conditional perfect.

Mixed conditionals

Connecting past condition to present result:

Si hubiera estudiado, sería médico. (If I had studied, I would be a doctor.)

Rule: Past condition (pluperfect subjunctive) + present result (conditional).

Word order

Spanish allows either clause first:

Si llueve, me quedo. / Me quedo si llueve.
Si tuviera dinero, viajaría. / Viajaría si tuviera dinero.

English

English uses four main conditional patterns based on probability and time.

Zero conditional (general truth)

If + present simple, present simple:

If you heat ice, it melts.
If I don’t sleep, I get grumpy.

Use: Facts, scientific truths, habits.

First conditional (real future)

If + present simple, will + infinitive:

If it rains, I will stay home.
If she calls, tell her I’m out.

Use: Probable future situations. Result can also be imperative.

Important: Never use will in the if-clause:

❌ If it will rain, I will stay.
✅ If it rains, I will stay.

Second conditional (unreal present/future)

If + past simple, would + infinitive:

If I had a car, I would drive to work.
If she knew, she would tell us.

Use: Hypothetical or unlikely situations. Past form indicates unreality.

Were for all persons:

If I were you… (not If I was you)
If he were here… (formal)

Third conditional (past counterfactual)

If + past perfect, would have + past participle:

If I had studied, I would have passed.
If they had arrived on time, they would have seen it.

Use: Regrets about the past. The condition was not met.

Mixed conditional

Past condition, present result:

If I had studied medicine, I would be a doctor now.

Present condition, past result (less common):

If I were more careful, I wouldn’t have broken it.

Chinese

Chinese conditionals use normal word order with 如rú果guǒ (if) and optionally 就jiù (then).

Basic pattern: 如rú果guǒ…，(就jiù)…

如rú果guǒ下xià雨yǔ，我wǒ就jiù不bù去qù。(If it rains, I won’t go.)
如rú果guǒ你nǐ来lái，我wǒ就jiù请qǐng你nǐ吃chī饭fàn。(If you come, I’ll treat you to dinner.)

就jiù is optional but common. It marks the result clause.

Hypothetical conditions

Chinese has no special verb form for hypotheticals. Context makes it clear:

如rú果guǒ我wǒ有yǒu钱qián，我wǒ就jiù去qù旅lǚ行xíng。(If I had money, I would travel.)

The hypothetical meaning comes from context, not verb form. Adverbs help:

要yào是shì…就jiù… (more hypothetical than 如rú果guǒ)
假jiǎ如rú… (formal hypothetical)

Past counterfactuals

Use 如rú果guǒ + 了le (completion) to show the condition was not met:

如rú果guǒ我wǒ那nà时shí候hou学xué习xí了le，我wǒ就jiù考kǎo上shàng了le。(If I had studied then, I would have passed.)

要yào是shì as casual alternative

要yào是shì is more colloquial than 如rú果guǒ:

要yào是shì你nǐ不bù来lái，我wǒ就jiù自zì己jǐ去qù。(If you don’t come, I’ll go alone.)

Word order

Chinese allows either clause first:

如rú果guǒ…，… / …, 如rú果guǒ…

Comparison at a glance

Type	Spanish	English	Chinese
Real present	Si + present, present	If + present, present	如rú果guǒ…，就jiù…
Probable future	Si + present, future	If + present, will	如rú果guǒ…，就jiù…
Hypothetical	Si + imperfect subj, conditional	If + past, would + verb	如rú果guǒ…，就jiù… (context)
Past counterfactual	Si + pluperfect subj, cond perfect	If + past perfect, would have	如rú果guǒ…了le，就jiù…
Subjunctive	Required for hypothetical	Not used	Not used
Special verb forms	Yes (subjunctive, conditional)	Yes (would, would have)	No
Result marker	None	Comma or then	就jiù (optional)

Examples

In Context

Spanish	English	Chinese
Si llueve, me quedo.	If it rains, I will* stay.*	如rú果guǒ下xià雨yǔ，我wǒ就jiù不bù去qù。
Si tuviera* dinero, viajaría.*	If I had* money, I would travel.*	如rú果guǒ我wǒ有yǒu钱qián，我wǒ就jiù去qù旅lǚ行háng。
Si hubiera* estudiado, habría aprobado.*	If I had studied, I would have passed.	如rú果guǒ我wǒ那nà时shí候hòu学xué习xí了le，我wǒ就jiù考kǎo上shàng了le。

Common mistakes

Spanish/Chinese speakers learning English: Using ‘will’ in the if-clause: If it will rain → If it rains
English speakers learning Spanish: Using indicative for hypothetical: Si tengo dinero, viajo → Si tuviera dinero, viajaría
English speakers learning Chinese: Using special future forms: 如rú果guǒ下xià雨yǔ，我wǒ将jiāng不bù去qù → 如rú果guǒ下xià雨yǔ，我wǒ就jiù不bù去qù
Chinese speakers learning English: Using present for hypothetical: If I have money, I will travel → If I had money, I would travel

Verb Tenses: How tense and aspect interact with conditional structures
Modals: How would, could, and should function in conditional results
Questions: How conditional questions are formed
Word Order: How Chinese conditionals maintain normal SVO order

Examples

Zero conditional (fact)

Si + present, present

First conditional (probable)

Si + present, future

Second conditional (hypothetical)

Si + imperfect subjunctive, conditional

Third conditional (past counterfactual)

Si + pluperfect subjunctive, conditional perfect

Mixed conditional

Si + pluperfect subjunctive, conditional

Subjunctive required

Yes (imperfect/pluperfect)

Word order flexibility

Flexible (result + si or si + result)

Examples

Zero conditional (fact)

If + present, present

First conditional (probable)

If + present, will + verb

Second conditional (hypothetical)

If + past simple, would + verb

Third conditional (past counterfactual)

If + past perfect, would have + past participle

Mixed conditional

If + past perfect, would + verb

Subjunctive required

Word order flexibility

Fixed (if-clause first or with comma)

Examples

Zero conditional (fact)

如rú果guǒ...，就jiù...

First conditional (probable)

如rú果guǒ...，就jiù...

Second conditional (hypothetical)

如rú果guǒ...，就jiù... (context)

Third conditional (past counterfactual)

如rú果guǒ...了le，就jiù... (context)

Mixed conditional

Context and adverbs

Subjunctive required

Word order flexibility

Flexible (result + 如rú果guǒ or 如rú果guǒ + result)

Comparison at a glance

Grammar concepts	Spanish	English	Chinese
Zero conditional (fact)	Si + present, present	If + present, present	如rú果guǒ...，就jiù...
First conditional (probable)	Si + present, future	If + present, will + verb	如rú果guǒ...，就jiù...
Second conditional (hypothetical)	Si + imperfect subjunctive, conditional	If + past simple, would + verb	如rú果guǒ...，就jiù... (context)
Third conditional (past counterfactual)	Si + pluperfect subjunctive, conditional perfect	If + past perfect, would have + past participle	如rú果guǒ...了le，就jiù... (context)
Mixed conditional	Si + pluperfect subjunctive, conditional	If + past perfect, would + verb	Context and adverbs
Subjunctive required	Yes (imperfect/pluperfect)	No	No
Word order flexibility	Flexible (result + si or si + result)	Fixed (if-clause first or with comma)	Flexible (result + 如rú果guǒ or 如rú果guǒ + result)

Side-by-side comparison

Grammar concepts	Spanish	English	Chinese
Zero conditional (fact)	Si + present, present	If + present, present	如rú果guǒ...，就jiù...
First conditional (probable)	Si + present, future	If + present, will + verb	如rú果guǒ...，就jiù...
Second conditional (hypothetical)	Si + imperfect subjunctive, conditional	If + past simple, would + verb	如rú果guǒ...，就jiù... (context)
Third conditional (past counterfactual)	Si + pluperfect subjunctive, conditional perfect	If + past perfect, would have + past participle	如rú果guǒ...了le，就jiù... (context)
Mixed conditional	Si + pluperfect subjunctive, conditional	If + past perfect, would + verb	Context and adverbs
Subjunctive required	Yes (imperfect/pluperfect)	No	No
Word order flexibility	Flexible (result + si or si + result)	Fixed (if-clause first or with comma)	Flexible (result + 如rú果guǒ or 如rú果guǒ + result)

Examples in context

Zero conditional (fact)

Spanish

Si + present, present

English

If + present, present

Chinese

如rú果guǒ...，就jiù...

First conditional (probable)

Spanish

Si + present, future

English

If + present, will + verb

Chinese

如rú果guǒ...，就jiù...

Second conditional (hypothetical)

Spanish

Si + imperfect subjunctive, conditional

English

If + past simple, would + verb

Chinese

如rú果guǒ...，就jiù... (context)

Third conditional (past counterfactual)

Spanish

Si + pluperfect subjunctive, conditional perfect

English

If + past perfect, would have + past participle

Chinese

如rú果guǒ...了le，就jiù... (context)

Mixed conditional

Spanish

Si + pluperfect subjunctive, conditional

English

If + past perfect, would + verb

Chinese

Context and adverbs

Subjunctive required

Spanish

Yes (imperfect/pluperfect)

English

Chinese

Word order flexibility

Spanish

Flexible (result + si or si + result)

English

Fixed (if-clause first or with comma)

Chinese

Flexible (result + 如rú果guǒ or 如rú果guǒ + result)

Key Takeaways

Spanish: Uses the indicative for real conditions and the subjunctive for hypothetical ones. The subjunctive is required in both the if-clause and the. For example: "Yes (imperfect/pluperfect)".

English: Uses three main patterns (first, second, third conditional) plus mixed conditionals. No subjunctive, but uses past tense forms to indicate u. For example: "If + past perfect, would have + past participle".

Chinese: Has no special conditional verb forms. Uses 如rú果guǒ (if) + normal word order, with 就jiù (then) optionally marking the result.

Key concepts compared: Zero conditional (fact), First conditional (probable), Second conditional (hypothetical).

Frequently Asked Questions

Why does English forbid 'will' in the if-clause while Spanish and Chinese have no such restriction?

English reserves 'will' for the main clause to express future in conditional sentences: 'If it rains, I will stay.' Putting 'will' in the if-clause (*If it will rain*) is ungrammatical. Spanish uses the present indicative in both clauses: *Si llueve, me quedaré.* Chinese uses <ruby>如<rt>rú</rt></ruby><ruby>果<rt>guǒ</rt></ruby> (if) with no tense shift at all. English learners of Spanish sometimes insert *ir a* or future forms in the si-clause by analogy with English, and Spanish learners of English frequently add 'will' after 'if.'

How does Spanish use the subjunctive in conditionals while English never does?

Spanish uses the subjunctive in counterfactual or hypothetical conditionals: *Si tuviera dinero, compraría un coche* (If I had money, I would buy a car). English uses the simple past in the if-clause and 'would' in the main clause, with no subjunctive. This is a major hurdle for English speakers learning Spanish, who must learn to see hypothetical meaning as requiring a special verb form rather than just a modal auxiliary. Chinese has no subjunctive at all, making the concept entirely foreign to Chinese learners of Spanish.

Why does Chinese have no special conditional verb forms?

Chinese expresses conditionality entirely through conjunctions and context: <ruby>如<rt>rú</rt></ruby><ruby>果<rt>guǒ</rt></ruby>...<ruby>就<rt>jiù</rt></ruby>... (if... then...). The verbs themselves never change. This is radically different from English, which shifts tenses ('If I were rich'), and Spanish, which uses the subjunctive. A Chinese speaker learning English or Spanish must acquire an entirely new grammatical category — verbal mood and tense manipulation — that their native language handles with vocabulary alone.

References

Nueva gramática de la lengua española — Real Academia Española / Asociación de Academias de la Lengua Española, 2010
The Cambridge Grammar of the English Language — Huddleston & Pullum, Cambridge University Press, 2002
A Comprehensive Grammar of the Modern Chinese Language — Li & Thompson, 1981

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verb-tenses

Last updated: June 4, 2026

Overview

Spanish

Real conditions (indicative)

Hypothetical conditions (subjunctive + conditional)

Past counterfactuals (pluperfect subjunctive + conditional perfect)

Mixed conditionals

Word order

English

Zero conditional (general truth)

First conditional (real future)

Second conditional (unreal present/future)

Third conditional (past counterfactual)

Mixed conditional

Chinese

Basic pattern: 如rú果guǒ…，(就jiù)…

Hypothetical conditions

Past counterfactuals

要yào是shì as casual alternative

Word order

Comparison at a glance

Examples

In Context

Common mistakes

Related topics

Examples

Examples

Examples

Comparison at a glance

Side-by-side comparison

Examples in context

Key Takeaways

Frequently Asked Questions

References