2nd and 3rd conditionals
IF + PAST SIMPLE, INFINITIVE
WOULDN’T
+
IF I WERE YOU, I’D MAKE HIM CLEAN HIS ROOM RIGHT NOW. I WOULDN’T EAT AT THIS TABLE, IF I DIDN’T HAVE TO.
USE SECOND CONDITIONAL SENTENCES TO TALK ABOUT HYPHOTETICAL OR IMPROBABLE SITUATIONS IN THE PRESENT OR FUTURE IF THERE WAS A FIRE IN THIS CLASSROOM, IT WOULD BE VERY DIFFICULT TO SCAPE.
IN THE IF CLAUSE YOU CAN ALSO USE THE PAST CONTINUOS. IN THE OTHER CLAUSE YOU CAN USE COULD OR MIGHT, INSTEAD OF WOULD. IF YOU WEREN’T MAKING SANDWICHES, I COULD GO FOR FAST FOOD.
WITH THE VERB BE YOU CAN USE WAS OR WERE, FOR I, HE, AND SHE IN THE IF CLAUSE… IF YOU WERE/WAS HERE, I’D HANG OUT WITH YOU. Note! We never use would, or wouldn't in the if clause. IF I WERE YOU, I WOULDN’T DO THAT
WE USE THE THIRD CONDITIONAL TO TALK ABOUT A HYPHOTETICAL PAST SITUATION AND ITS CONSEQUENCE. IF YOU HAD STUDIED MORE YOU WOULD HAVE PASSED THE EXAMS
YOU CAN ALSO USE THE PAST PERFECT CONTINOUS IN THE IF CLAUSE. YOU CAN USE COULD HAVE OR MIGHT HAVE IN THE OTHER CLAUSE. IF THEY HAD KNOWN YOU WERE COMMING, THEY MIGHT HAVE STAYED LONGER. HE WOULD HAVE DIED IF HE HADN’T BEEN WEARING A HELMET.