B1 · Intermediate Chapter 12

Looking Ahead: Future and Probability

3 Total Rules
33 examples
5 min
Rules in This Chapter Quick Practice

Chapter in 30 Seconds

Master the art of looking forward and making smart guesses in Spanish.

  • Distinguish between near plans and long-term predictions.
  • Identify irregular verb stems shared by future and conditional tenses.
  • Use the future tense to express probability in the present moment.
The future is yours to predict and plan.

What You'll Learn

Hey there! Ready for a new level in Spanish? In this chapter, we're not just talking about the past and present anymore – we're diving into the future! You'll learn how to talk about your plans, like "I'm going to work tomorrow or I want to travel this week." This way, you can coordinate your travel plans with friends or confidently answer when someone asks what you're doing this weekend. First, you'll master using ir a to express your definite plans, much like going to in English. Then, we'll move on to the Futuro Simple, which is not only for future predictions but also for making educated guesses about the present. For example, you can say "I'm sure they'll come tomorrow or I think they must be home now." Here, you'll discover how one verb stem can serve both the future and conditional tenses – killing two birds with one stone! Now, imagine you have a Spanish-speaking friend who calls you, but you don't answer. Later, you want to tell them,

I must have been at work.
Or perhaps there's a knock at the door, and you want to say,
It must be the mailman.
This is where the Futuro de Probabilidad comes in handy. You'll sound much more natural and native, significantly boosting your Spanish. By the end of this chapter, you'll be able to speak confidently about the future and make smart guesses about present situations. So let's go, there are tons of exciting things to learn!

Learning Objectives

By the end of this chapter, you will be able to:

  1. 1
    By the end you will be able to choose correctly between 'ir a' and 'futuro simple' for plans.
  2. 2
    By the end you will be able to conjugate the 10 most common irregular future stems correctly.
  3. 3
    By the end you will be able to speculate about current situations using the future of probability.

Chapter Guide

Overview

Welcome to your next big step in mastering Spanish grammar! As a B1 Spanish learner, you're ready to move beyond just describing the present and past. This chapter, "Looking Ahead: Future and Probability," is all about equipping you with the tools to talk about tomorrow, next week, or even next year. You'll learn how to express your plans, make predictions, and even guess about what's happening right now, making your conversations much more dynamic and natural.
We'll start by solidifying your understanding of ir a + infinitive, the most common way to express definite plans, much like "going to" in English. Then, we'll dive into the Futuro Simple, a powerful tense used not only for future predictions but also for making educated guesses about present situations – a concept often called Futuro de Probabilidad. Imagine being able to confidently say, "I'm sure they'll arrive soon" or "They must be at home right now." This ability to express probability will significantly boost your fluency and help you sound more like a native speaker. Get ready to expand your communicative range and impress your Spanish-speaking friends!

How This Grammar Works

Let's break down how to talk about the future and express probability in Spanish. First up is ir a + infinitive, which is your go-to for definite plans and intentions. It's formed by conjugating the verb ir (to go) in the present tense, followed by the preposition a, and then the infinitive of the action verb. For example, Voy a estudiar (I am going to study) or Van a viajar mañana (They are going to travel tomorrow). This construction is incredibly common and mirrors the English "going to" structure perfectly for expressing your immediate or certain future plans.
Next, we have the Futuro Simple, also known as the Simple Future Tense. This tense is used for predictions, general future events, and promises. To form it, you take the infinitive of most verbs and add specific endings: -é, -ás, -á, -emos, -éis, -án. For example, hablaré (I will speak), comerás (you will eat), vivirá (he/she/it will live). There are also irregular verbs in the future, but here's a neat trick: their irregular *stem* is often the same one used for the Conditional tense! For instance, tener becomes tendr- (so, tendré, tendrás, etc.), hacer becomes har- (haré, harás, etc.), and decir becomes dir- (diré, dirás, etc.).
Now for the exciting part: Futuro de Probabilidad. This is where the Futuro Simple truly shines beyond just future events. You can use it to make guesses or express probability about *present* situations. For example, if you say Estará en casa (He/She must be at home), you're not talking about the future, but rather speculating about their current location. Similarly, Serán las tres (It must be three o'clock) or Tendrá hambre (He/She must be hungry) use the future tense to express a conjecture about the present. Mastering this usage will make your B1 Spanish sound much more authentic and nuanced.

Common Mistakes

  1. 1✗ Wrong: "Voy a viajaré mañana."
✓ Correct: "Voy a viajar mañana."
*Explanation:* When using ir a + infinitive, the main verb (the action you're going to do) should always be in its infinitive form, not conjugated. Only ir is conjugated.
  1. 1✗ Wrong: "¿Dónde está Juan? Yo creo que está en el trabajo." (When guessing)
✓ Correct: "¿Dónde está Juan? Estará en el trabajo."
*Explanation:* While "creo que está" is grammatically correct, using the Futuro Simple (Estará) to express probability or conjecture about the present is much more natural and common in Spanish. It conveys "He must be at work" or "He's probably at work."

Real Conversations

A

A

¿Qué vas a hacer este fin de semana? (What are you going to do this weekend?)
B

B

Voy a visitar a mis abuelos. ¿Y tú? (I'm going to visit my grandparents. And you?)
A

A

Yo iré a la playa si hace buen tiempo. (I will go to the beach if the weather is good.)
A

A

¿Por qué no contesta Ana? (Why isn't Ana answering?)
B

B

Estará en una reunión. Siempre tiene muchas por la tarde. (She must be in a meeting. She always has many in the afternoon.)
A

A

¿A qué hora llegará el tren? (What time will the train arrive?)
B

B

No lo sé, pero tendrá un retraso, como siempre. (I don't know, but it will probably be delayed, as always.)

Quick FAQ

Q

What's the main difference between "ir a + infinitive" and the "Futuro Simple" in Spanish?

Ir a + infinitive is for definite, pre-planned actions, similar to "going to" in English. The Futuro Simple is for predictions, general future events, or expressing probability about the present.

Q

How do I know when to use the "Futuro Simple" for probability instead of just saying "I think that..."?

Using the Futuro Simple for probability (Futuro de Probabilidad) adds a native-like nuance of conjecture or assumption ("must be," "probably is"). While "creo que" (I think that) is correct, the future tense often sounds more natural for expressing educated guesses about the present.

Q

Are there many irregular verbs in the "Futuro Simple" in B1 Spanish?

There are about 12 common irregular verbs in the Futuro Simple, but the good news is they all follow a similar pattern: they have an irregular *stem* to which you add the regular future endings. Plus, these irregular stems are often the same ones used for the Conditional tense!

Cultural Context

In Spanish-speaking cultures, using the Futuro de Probabilidad is very common and natural in everyday conversations. It's a subtle yet powerful way to express uncertainty or make assumptions without sounding overly direct. You'll hear it frequently when people are speculating about someone's whereabouts, the time, or a potential reason for something. Mastering this usage will make your Spanish grammar sound much more authentic and integrated into native speech patterns.

Key Examples (6)

1

Te voy a llamar en cinco minutos, ¿vale?

I'm going to call you in five minutes, okay?

Spanish Future: Plans vs. Predictions (Futuro Simple vs. Ir a)
2

Mañana lloverá en todo el norte del país.

Tomorrow it will rain in the whole north of the country.

Spanish Future: Plans vs. Predictions (Futuro Simple vs. Ir a)
3

Mañana tendré los resultados de el examen.

Tomorrow I will have the exam results.

Spanish Irregular Future & Conditional: One Stem, Two Tenses
4

¿Me podrías pasar la sal, por favor?

Could you pass me the salt, please?

Spanish Irregular Future & Conditional: One Stem, Two Tenses
5

¿Dónde `estará` mi móvil?

I wonder where my phone is.

Guessing the Present: Future Tense for Probability (Estará en casa)
6

`Serán` las tres de la tarde.

It must be around three in the afternoon.

Guessing the Present: Future Tense for Probability (Estará en casa)

Tips & Tricks (3)

💡

The Calendar Rule

If it's on your calendar, use 'ir a'. If it's a guess, use the simple future.
frontend.learn_grammar.from_rule: Spanish Future: Plans vs. Predictions (Futuro Simple vs. Ir a)
💡

Group them

Group the 12 verbs by sound: 'dr' verbs (tener, poner, salir, venir, valer) and 'r' verbs (hacer, querer).
frontend.learn_grammar.from_rule: Spanish Irregular Future & Conditional: One Stem, Two Tenses
💡

Context is King

If you are talking about the present, use the future tense. Don't overthink it.
frontend.learn_grammar.from_rule: Guessing the Present: Future Tense for Probability (Estará en casa)

Key Vocabulary (7)

mañana tomorrow próximo next supongo I suppose / I guess probablemente probably hacer to do / to make tener to have ahora now

Real-World Preview

phone

Wondering where a friend is

Review Summary

  • Infinitive + -é, -ás, -á, -emos, -éis, -án
  • Irregular Stem + Future Endings

Common Mistakes

While the present is sometimes used for the future, at B1 level you should use future forms to be precise about timing.

Wrong: Mañana yo como con mi abuela.
Correct: Mañana comeré / voy a comer con mi abuela.

Don't forget to use the irregular stem 'tendr-' instead of the full infinitive 'tener'.

Wrong: Yo teneré mucho dinero.
Correct: Yo tendré mucho dinero.

To sound like a native, use the future tense when you are guessing the current time or state.

Wrong: ¿Qué hora es? - Es las tres (when unsure).
Correct: ¿Qué hora será? - Serán las tres.

Next Steps

You've just expanded your Spanish timeline! Being able to discuss the future and express probability makes your conversations so much more dynamic. Keep practicing those irregular stems!

Write down 5 predictions for the world in 50 years.

Look at a photo of people and guess what they are doing using probability.

Continue to: Hypotheticals and Giving Advice

Quick Practice (9)

Fill in the blank with the correct form of 'ir a'.

Yo ___ comer a las dos.

✓ Correct! ✗ Not quite. Correct answer: voy a
The subject is 'Yo'.

frontend.learn_grammar.from_rule: Spanish Future: Plans vs. Predictions (Futuro Simple vs. Ir a)

Choose the correct future form.

Mañana (lloverá / voy a llover).

✓ Correct! ✗ Not quite. Correct answer: lloverá
Weather is a prediction.

frontend.learn_grammar.from_rule: Spanish Future: Plans vs. Predictions (Futuro Simple vs. Ir a)

Find the error.

Find and fix the mistake:

Probablemente él está en casa.

✓ Correct! ✗ Not quite. Correct answer: está
Should be 'estará'.

frontend.learn_grammar.from_rule: Guessing the Present: Future Tense for Probability (Estará en casa)

Correct the sentence.

Find and fix the mistake:

Yo comeré ahora.

✓ Correct! ✗ Not quite. Correct answer: Yo voy a comer ahora.
Immediate plans use 'ir a'.

frontend.learn_grammar.from_rule: Spanish Future: Plans vs. Predictions (Futuro Simple vs. Ir a)

Select the correct conditional.

Si pudiera, yo ___ (hacer) eso.

✓ Correct! ✗ Not quite. Correct answer: haría
Stem is har-.

frontend.learn_grammar.from_rule: Spanish Irregular Future & Conditional: One Stem, Two Tenses

Conjugate 'tener' in future.

Yo ___ (tener) dinero.

✓ Correct! ✗ Not quite. Correct answer: tendré
Irregular stem is tendr-.

frontend.learn_grammar.from_rule: Spanish Irregular Future & Conditional: One Stem, Two Tenses

Fix the error.

Find and fix the mistake:

Yo deciré la verdad.

✓ Correct! ✗ Not quite. Correct answer: diré
Stem is dir-.

frontend.learn_grammar.from_rule: Spanish Irregular Future & Conditional: One Stem, Two Tenses

Conjugate the verb in the future tense.

¿Dónde ___ (estar) María?

✓ Correct! ✗ Not quite. Correct answer: estará
Future tense for probability.

frontend.learn_grammar.from_rule: Guessing the Present: Future Tense for Probability (Estará en casa)

Choose the correct sentence.

Which is correct?

✓ Correct! ✗ Not quite. Correct answer: Estará en casa.
The future tense is the correct form for probability.

frontend.learn_grammar.from_rule: Guessing the Present: Future Tense for Probability (Estará en casa)

Score: /9

Common Questions (6)

In many Latin American countries, yes, it is very common. In Spain, you should still learn the simple future.
No! It is also used for probability in the present, like '¿Qué hora será?' (I wonder what time it is).
These are the most common verbs that have evolved irregular stems over centuries.
Yes, 'mantener' follows 'tener'.
Yes, but in context, it's clear. If you say 'Estará en casa mañana', it's future. If you say 'Estará en casa' without a time marker, it's probability.
Because it was historically used for the future, but evolved to include probability.
Previous Chapter
Connecting Ideas and Comparing Things
Next Chapter
Hypotheticals and Giving Advice
Back to Roadmap