Second Conditional

IF | Condition | Result |
past simple | WOULD + base verb | |
If | I read the book | I would pass my class. |
We are still talking about a future condition. In formulating the second conditional we use the past simple tense to address the future activity and then we use WOULD + base verb talk to address the potential future result. Always remember there is only a remote possibility of this condition happening.
For example:
IF | Condition | Result |
past simple | WOULD + base verb | |
If | I exercised daily | I would be thin. |
If | he left his job | he would be happy. |
If | he moved to this town | I would date him. |
If | it rained at your wedding | what would you do? |
The words should, could or might can substitute the word would in some cases. For example: If I won the contest, I should take a picture.
Also, you can switch the order of the clauses(result and condition) along with the if statement:
Result | IF | Condition |
WOULD + base verb | if | past simple |
I would be thin | if | I exercised daily. |
He would be happy | if | he left his job. |
I would date him | if | he moved to this town. |
What would you do | if | it rained at your wedding? |