Conditionals
0 – Physics or Cause-Effect
If [Present], [Present]
If we heat water, it boils.
If you press the button, the light comes on.
1 – Future
If [Present], [Future]
If the weather is fine, we will go to a park.
2 – Hypothesis – Present (General Things)
If [Past Simple], [would + V1]
If you studied harder, you would have better marks.
3 – Real Past events
If [Past Perfect], [would + have + V3]
If I had left the house on time yesterday, I would not have missed the train.
(I regret that I left the house late and, thus, missed the train).
Mixed Conditionals
[Present] [Present]
Hypothesis If [Past Simple], [would + V1]
[Past] [Past]
Real Past events If [Past Perfect], [would + have + V3]
Mixed [Present] + [Past]
If [Past Simple], [would + have + V3]
[Past] + [Present]
If [Past Perfect], [would + V1]
Mixed Conditionals are made from parts of Conditional 2 (Hypothesis – assumptions related to Present) and Conditional 3 (real actions in the past) to describe the following situations:
Past result with Present (ongoing) condition – [would have +V3] if [Past Simple]
I would not have missed the train yesterday if I were a more organized person.
If I were a more organized person, I would not have missed the train yesterday.
Present result with Past (ceased) condition – [would V1] if [Past Perfect]
I would do better these days if I had not left the company 10 years ago.
If I had not left the company 10 years ago, I would do better these days.