Second contional and third conditional

Structure

Positive

Condicional

Consequence

If+Subject+verb in past simple

Subject+would+verb in infinitive

Negative

Conditional

Consequence

If+subject+didn´t+verb

Subject+wouldn´t+verb infinitive

Question

Contional

If+subject+past simple

Consequence

Question word+would+subject+infinitive

Uses

Unlikely

Hipothetycal

Unreal

If I saw a dinosaur, I would take a photo.

If I didn´t pass the exam with 5.0, I wouldn´t pass the year.

Where would you travel around the world, if I won a million dolar?

Secons conditional

Second condiotional

Uses

Imaginary situations

Present results

Third conditional

Structure

Positive

Negative

Question

Conditional

Consequence

If+subject+past perfect

Subject+modal verb+have+past participle

If I had studied for the exam, I would have had 5.0 in the exam.

Conditional

Consequence

If+subject+past perfect in negative

Subject+modal veb in negative+have+past participle

If you hadn´t eaten much, you wouldn´t have been full.

Conditional

Consequence

Events occurred in the past

If+subject+past perfect

Question word+modal verb+subject+have+past participle

When would he have learned english, if he had traveled to United States?

Third conditional