The second conditional is used to talk about imaginary situations and their consequences. It is formed using "if" plus the subject and past simple verb to describe the situation, and the subject plus "would" plus the infinitive verb to describe the consequence. A comma is used if the situation is written first, and no comma if the consequence is written first. "Would" can also be contracted to "'d".

1. Second conditional
• We use the second conditional to talk
about imaginary situations and their
consequences:
If he studied harder, he would pass his exams.
She would travel around the world if she won the lottery.
What would you do if you found a lot of money?

2. Second conditional
• To form sentences we use: If + subject + verb in past
simple for the situation, subject + would/wouldn’t +
infinitive without to for the consequence.
• If the situation goes first, we write a comma:
If she had a dog, she would feel safe.
• If the consequence goes first, we don’t write a comma:
I would play football if I didn’t have classes today.
• Would can be contracted to ’d:
If she had a dog, she’d feel safe.