If-clauses type 1: the real hypothesis
B1 Il periodo ipotetico della realtà 40 / 53
In short
When the condition is real and likely - something that can genuinely happen - use plain indicative on both sides: se + present (or future) in the “if” part, and present, future or imperative in the result. Se piove, resto a casa. If it rains, I stay home. No subjunctive, no conditional: this is the easy one.
The rule
Italian sorts conditional sentences into three types by how realistic the condition is. This lesson covers only the first type, il periodo ipotetico della realtà - the condition is presented as real, open or probable. Here everything stays in the indicative; you never touch the subjunctive or the conditional.
A conditional sentence has two halves:
- the protasi - the se (“if”) clause, which states the condition;
- the apodosi - the main clause, which states the result.
Order is free: Se studi, impari and Impari se studi mean the same thing. When the se-clause comes first, separate the two halves with a comma; when it comes second, no comma is needed.
Step 1 - put the se-clause in the indicative present (or future). This is the condition: Se hai tempo…, Se vieni domani…, Se non piove….
Step 2 - choose the tense of the result clause according to what you mean:
- present, for a general truth or an automatic consequence: Se scaldi l’acqua a 100 gradi, bolle. If you heat water to 100 degrees, it boils.
- future, for a specific consequence still to come: Se parti adesso, arriverai in tempo. If you leave now, you’ll arrive on time.
- imperative, to tell someone what to do if the condition holds: Se lo vedi, salutalo. If you see him, say hi to him.
The one thing English speakers get wrong: Italian allows the future in the se-clause. English forbids will after if (“If you will leave” is wrong; you must say “If you leave”). Italian has no such rule - when both events are in the future, you may put the future in both halves: Se partirai domani, ti accompagnerò alla stazione. If you leave tomorrow, I’ll take you to the station. Using the present here (Se parti domani, ti accompagnerò) is equally correct and more common in speech; the double future is simply an option English does not have.
Forms & patterns
The recognised combinations of type 1. The protasi is always indicative; the apodosi is present, future or imperative.
| Protasi (se + …) | Apodosi | Example |
|---|---|---|
| present | present | Se ho tempo, ti aiuto. |
| present | future | Se ho tempo, ti aiuterò. |
| present | imperative | Se hai tempo, aiutami. |
| future | future | Se avrò tempo, ti aiuterò. |
Notice where the future is and is not possible, against English:
| Italian | English | Note |
|---|---|---|
| Se piove, resto a casa. | If it rains, I stay home. | present + present |
| Se partirai presto, arriverai in tempo. | If you leave early, you’ll arrive on time. | Italian future, English present |
| Se vieni, ti divertirai. | If you come, you’ll have fun. | present is fine too |
| Se will partire… | If you will leave… | both wrong: no will / no bare will + infinitive |
Examples
- Se piove, resto a casa. If it rains, I stay home.
- Se vieni alla festa, ti diverti. If you come to the party, you’ll have fun.
- Se parti adesso, arriverai in tempo. If you leave now, you’ll arrive on time.
- Se lo vedi, salutalo da parte mia. If you see him, say hi to him from me.
- Se hai fame, c’è la pasta in cucina. If you’re hungry, there’s pasta in the kitchen.
- Se studierai di più, passerai l’esame. If you study more, you’ll pass the exam.
- Se non capisci, chiedi al professore. If you don’t understand, ask the teacher.
- Se domani fa bel tempo, andiamo al mare. If the weather’s nice tomorrow, we’ll go to the sea.
- Ti presto il libro se me lo restituisci lunedì. I’ll lend you the book if you give it back to me on Monday.
Common mistakes
- Se avessi tempo, aiutami. -> Se hai tempo, aiutami. A real condition stays in the indicative: se avessi opens a type-2 hypothesis, which cannot govern a command. A future se-clause, on the other hand, pairs with an imperative perfectly well - Se avrai tempo, aiutami.
- Se studierai, passi l’esame. -> Se studi, passi l’esame. / Se studierai, passerai l’esame. Don’t mix a future protasi with a present apodosi. Once the condition is in the future, the result is too (or an imperative); a present protasi is the flexible one and takes a present, a future or an imperative.
- Se piove, io resterei a casa. -> Se piove, resto a casa. Type 1 has no conditional. When the condition is real, the result stays in the indicative, not the “would” form.
- Se saresti libero, chiamami. -> Se sei libero, chiamami. The se-clause is never in the conditional (saresti); a real condition takes the plain present.
- Ti aiuto se tu voglia. -> Ti aiuto se vuoi. Don’t overbuild it - se does not call for the subjunctive of the last two steps; a simple real condition needs only se + indicative, nothing more.
Tips
- This is the “no subjunctive” if-clause. If you catch yourself reaching for fossi or avrei, you have slipped into type 2 or 3 - a later step. Real, likely condition = indicative all the way through.
- Future after “if” is a free bonus, not a duty. Italian lets you say Se partirai…, but Se parti… is just as correct and more frequent when speaking. Never translate it back into English with will.
- Comma rule by position. Se-clause first -> comma (Se piove, resto); se-clause second -> no comma (Resto se piove).
- Se is not the same as the question word. The se that means “if / whether” in an indirect question (Non so se viene) is a different job from the conditional se here; don’t expect a comma or a result clause there.