What's the conditional?
I wouldn't have left my job if I had known how difficult it is to find another one.
Third Conditional
Make a third conditional sentence: I/not left my job / how difficult/ to find another one.
I wouldn't have left my job if I had known how difficult it is to find another one.
When do we use the third conditional?
The third conditional is used: To talk about 'impossible' conditions. They are impossible because they happened in the past and we cannot change them. It is formed in the following way: If + past perfect, would have + past participle.