Explain consequences and make decisions: the First Conditional.

The first conditional talks about real, possible situations in the future and their likely results. It's built from two parts: the "if" clause (present simple) and the result clause (will + base verb).

Why this matters This lesson connects directly to your progress: it covers form: if + present simple, will + base verb; negative conditions and results; advice, instructions, and uncertain plans. Mastering this content lets you move forward confidently, and reinforces patterns you'll use again later. Take time to review every example before moving to the assessment — repetition is what actually locks knowledge in long-term.

01

What will you be able to do?

The goals of this lesson.

02

Before you start

You already know how to talk about the future with "will" and "going to". This lesson combines a present condition with a future result: the First Conditional ("If it rains, I will stay home").

03

Form: if + present simple, will + base verb

The "if" clause always uses present simple, even though it refers to the future. The result clause uses "will" + the base verb. The order of the two clauses can be reversed.

PartTenseExample
If clausepresent simpleIf it rains,
Result clausewill + base verbI will stay home.

Examples

If it rains, I will stay home.
Form
If she studies hard, she will pass the exam.
Form
If we leave now, we will arrive on time.
Form
If you heat ice, it melts.
Form
If they win, they will celebrate all night.
Form
I will call you if I have any news.
Form (reversed order)

04

Negative conditions and results

Either or both clauses can be negative — "doesn't/don't" in the if-clause, and "won't" in the result clause.

Examples

If he doesn't hurry, he will miss the bus.
Negative condition
If I don't finish today, I will finish tomorrow.
Negative condition
If you don't water the plants, they will die.
Negative condition
If we don't leave soon, we won't make it.
Negative + negative
What will you do if it rains?
Question
Will you help me if I ask you?
Question

05

Advice, instructions, and uncertain plans

The first conditional isn't only about "will" — it's also common with imperatives (go, ask, take) for advice, or with present simple for general truths.

Examples

If you don't understand, ask a question.
Advice
If you feel sick, go home and rest.
Advice
If you are tired, take a break.
Advice
If prices go up, people will buy less.
General truth
If you mix red and blue, you get purple.
General truth
If I have time this weekend, I'll clean the house.
Uncertain plan
If she calls, tell her I'm busy.
Instruction
If it's sunny tomorrow, we'll go to the beach.
Uncertain plan
I won't go if you don't come with me.
Negative + negative
If you save money now, you will thank yourself later.
Advice

06

Reading

Read the text and answer the questions. You can try as many times as you want.

Tomorrow is an important day for Laura. If she passes her final exam, she will graduate from university. If she doesn't pass, she will have to retake the course next semester. She has studied hard, so if she stays calm, she will probably do well.

Her friends told her, "If you feel nervous, take a deep breath before you start." Her parents said that if she graduates, they will throw a big party for her. If everything goes well, she will start looking for a job right away.

1. What will happen if Laura passes her exam?

2. What will happen if she doesn't pass?

3. What advice did her friends give her?

4. What will her parents do if she graduates?

5. What will Laura do if everything goes well?

💪 You can now talk about the future with real precision. Review this lesson if needed, or keep building your fluency!

07

Fill in the Blanks

Usa las pistas para completar cada palabra en inglés. Sin calificar — repite las veces que quieras.

08

Key Points

The essentials of this lesson, summarized.

09

Vocabulary in This Lesson

Key terms to remember.

rains
/reɪnz/

water falls from the clouds

llueve
"If it rains, I will stay home."
studies
/ˈstʌd.iz/

spends time learning about a subject

estudia
"If she studies hard, she will pass the exam."
leave
/liːv/

to go away from a place

salir, irse
"If we leave now, we will arrive on time."
to heat
/hiːt/

to make something hot

calentar
"If you heat ice, it melts."
to celebrate
/ˈsel.ɪ.breɪt/

to do something enjoyable for a special occasion

celebrar
"If they win, they will celebrate all night."
to call
/kɔːl/

to telephone someone

llamar
"I will call you if I have any news."

10

Build the Sentence

Tap the words in the correct order to form the sentence. Ungraded — repeat as many times as you like.

11

Choose the Correct Verb

Tap the correct verb form to complete each sentence. The other options are conjugations from other tenses — on purpose, so you learn to tell them apart.

If you ice it melts

If go up people will buy less

If it I will stay home

If you sick go home and rest

If you are take a break

13

Assessment

You need at least 80% to unlock the next lesson. You can retake it as many times as you want — your best score is saved.

1. "What will you do if it rains?" — which one is correct?

2. Which option matches: "If you don't water the plants, they will die."?

3. "If it's sunny tomorrow, we'll go to the beach." — which one is correct?

4. What does this mean: "I won't go if you don't come with me."?

5. What does this mean: "If prices go up, people will buy less."?

6. "If you are tired, take a break." — which one is correct?

7. Which option matches: "If he doesn't hurry, he will miss the bus."?

8. What does this mean: "If we leave now, we will arrive on time."?

9. Which option matches: "Will you help me if I ask you?"?

10. "If you save money now, you will thank yourself later." — which one is correct?

14

Summary and next step

You now build First Conditional sentences (if + present, will + verb). Next lesson: modals of possibility — might, could, may.

🗣️ Practice out loud

Use the conversational tutor to practice this topic.

Open the tutor

15

Games

Practice this lesson's vocabulary with a word search and flashcards. Ungraded — play as many times as you like.

Word Search

Tap the first and last letter of a hidden word to find it. Los términos de varias palabras van sin espacios en el tablero (ej. "give up" aparece como GIVEUP).

Flashcards

Elige la respuesta correcta. Si aciertas, la tarjeta queda lista por hoy; si fallas, vuelve a aparecer pronto para reforzarla. Tu progreso se guarda en este dispositivo.

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