Zero conditional
(for always real situations)
| f clause | Main clause |
|---|---|
| If + Present tense | Present tense |
| If you freeze water If he takes an aspirin, If she comes here, | it turns into ice. he gets an allergy. she always sing. |
First conditional
(for real or possible situations)
| If clause | Main clause |
|---|---|
| If + Present tense | will / can / may / must + verb |
| If it rains today, If I have time, If they don´t invite you, | I'll stay at home. I will visit you in the afternoon. you must not go. |
Second conditional
(hipotetical situations)
| If clause | Main clause |
|---|---|
| If + Past Simple | would / could / might + verb |
| If I won the lottery, If I were you, If I were younger, | I would travel around the world. I would marry with him. I would travel a lot. |
Third conditional
(hipotetical past situation)
| If clause | Main clause |
|---|---|
| If + Past Perfect tense | would/could/might + have + past participle |
| If I had won the lottery, | I would have own the biggest shop in town. |
theory
2nd. conditional
