This document summarizes the three types of conditionals in English: Type 0 refers to general truths and uses if + present, present. Type 1 refers to possible present or future events and uses if + present, future. Type 2 describes hypothetical present or future situations and uses if + past, conditional. The difference is that Type 1 expresses possibility while Type 2 expresses imagination. Type 3 refers to impossible past conditions and uses if + past perfect, conditional perfect.

1. CONDICIONAIS
TIPO 0
Usamos para constatar factos/ algo que é verdade
If clause + simple present – simple present
Exemplos: If you heat snow, it melts. / If it doesn’t rain, life finishes. / If you mix blue and
yellow, you get green. / If you lie in the sun too long, your skin turns red.
TIPO 1
Usamos para nos referir a algo que seja verdade que possa acontecer no presente ou no futuro
If clause + simple present – future (will + infinitive, going to, modal verbs, etc.)
Exemplos: If we go by train, it will be cheaper. / If he doesn’t hurry, he will be late. / If the
weather is rainy, we will stay at home. / Who will you invite if you give a party? / You can go
out if you don’t have to study. / I may come late if I have more work.
NOTA: WILL, CAN, MAY - FUTURO
TIPO 2
Usamos para descrever ou indicar situações hipotéticas no presente ou no futuro
If clause + simple past – conditional (modal verbs, etc.)
Exemplos: If I had a car, I would take you home. (realidade: não tens um carro) / If I lived near
my office I’d be in time for work. (realidade: não vives perto do escritório) / If I dyed my hair
blue (realidade: não pintas o cabelo de azul), everyone would laugh. / I would lower taxes If I
were president. (realidade: não és presidente) / If I were you, I wouldn’t drive so fast.
(realidade: não tens um carro)
NOTA: WOULD, COULD, MIGHT – CONDICIONAL
DIFERENÇA ENTRE O TIPO 1 E O TIPO 2
Tipo 1 – possibilidade
Tipo 2 – imaginação
o If I have enough Money, I can buy that car. (é possível)
o If I had enough money, I could buy that car. (imaginação)
If he studies hard, he will pass the exam. (é possível)
If he studied hard, we wouldn’t pass the exam. (imaginação/ não é real)
 What would do if you were the president? (imaginação)
 If he’s late again, I’ll be very angry. (é possível).

2. TIPO 3
É impossível que a condição seja cumprida visto que pertence ao passado
If clause + past perfect – conditional perfect (would + have + past participle)
Exemplos: If Lily hadn’t moved to Leeds, she wouldn’t have studied Chinese. / She
wouldn’t have met so many foreign friends if she hadn’t been a member of the Students
Union. / She wouldn’t have felt so secure if she had decided to live in a bedsit.
NOTA: CONDITIONAL PERFECT PODE SER USADO COM WOULD, COULD E MIGHT