Conditionals - How to use them

Explanation of how and when to use conditionals

https://www.ef.com/wwen/english-resources/english-grammar/conditional/

Exercises

https://www.englisch-hilfen.de/en/exercises/if_clauses/mix3.htm

Review and exercises

https://learnenglish.britishcouncil.org/grammar/intermediate-to-upper-intermediate/conditionals-1

https://learnenglish.britishcouncil.org/grammar/intermediate-to-upper-intermediate/conditionals-2