A brief summary of how conditionals work in English. https://www.skype-lessons.com/blog/conditionals/
0) IF + PRESENT / PRESENT
1) IF + PRESENT / WILL
2) IF + PAST / WOULD
3) IF + PAST PERFECT / WOULD HAVE + 3rd
https://www.skype-lessons.com/blog/
And there is a quiz here
http://www.quiz.biz/quizz-365625.html
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