Mamma mia!

Second Conditional

If + Simple Past, + Would + Base Form -->  If I had money, I would go on holidays.

 OR
Would + Base Form + If + Simple Past  --> I would go on holidays if I had money.

 Examples:

• If I won a million dollars, I would travel around the world.
  
  
• If I met him again, I would tell him the truth.
  
  
• She would quit school if her parents agreed.
  
  
• I would be surprised if I saw pigs in the sky.

Click on the links to do some practice:
http://www.englisch-hilfen.de/en/exercises/if_clauses/type_2_statements.htm
http://www.englisch-hilfen.de/en/exercises/if_clauses/type_2_negation.htm
http://www.englisch-hilfen.de/en/exercises/if_clauses/type_2_mix3.htm

Irregular verbs